Showing posts with label eco-friendly. Show all posts
Showing posts with label eco-friendly. Show all posts

Wednesday, 25 September 2019

Is the honey industry killing the bees?

Bees on Honeycomb
Photo from pexels.com
We are all aware of the importance of maintaining a healthy pollinator population. We would lose over a third of our crops without them. Bees and other pollinators do this by transferring pollen between flowers allowing new seeds to be produced and dispersed, increasing crop and wild plant populations. Between 1996 and 2016, the European honey bee population declined by 25% as a result of colony collapse disorder (CCD) which has been attributed to a range of causes, including the removal of wild meadows, pesticides and parasites. Many of us believe that by buying honey we are supporting the growth of this declining population but is this really the case?

The average honey bee colony contains 50,000 bees, with the majority being worker bees whose role is to collect nectar for the hive. One hive can produce 14 KG of honey. That seems like an awful lot for one hive so is it really an issue for us to have some honey? To make 0.45 KG of honey the hive will have to get to two million flowers and travel around 55,000 miles to do this only for us to steal the majority of their food collected which, in my opinion, doesn't seem very fair to the the poor hard working bees. With CCD increasing in concern, we should be giving the bees the best chance for survival and that means ensuring that they have enough food to survive and reproduce.

To increase honey production, some beekeepers, mainly in the US, have resorted to artificial insemination to increase the number of drones in the hive, thus increasing the pollen collected. Although very few beekeepers are doing this is does mean killing at least one drone in order to collect the semen. The head and first segment of the body are crushed in order for the muscles to contract, making it easy to collect the semen. The queen bee is then held down via hooks in order to be inseminated which can lead to injury and possibly death of the queen. There have also been some cases where the queens wings have been clipped to prevent any chance of her flying away. With bee population becoming so scarce, should we be killing bees in order to artificially increase honey production for human consumption?

Despite these issues there are many other reasons for a declining bee population that don't involve honey. There is an argument that bee farms increase populations by increasing the amount of hives, planting flowers and reducing pesticides to increase bee populations. Bees in honey hives will also pollinate the surrounding area, helping to increase plant biodiversity which is the base of every food web, in turn supporting larger mammals in the area. It has also never been proven that there is a link between honey production and declining bee populations and there are many things we can do to limit the impact honey production has on bees. One thing could be to ban artificial insemination and limit the amount that can be taken form a single hive. So this begs the question, should governments be doing more to reduce our impact rather than stop eating honey altogether?

Personally, I think that ethically it isn't right for us to take the honey from the bees especially seeing as the entire hive is built around it. There are so many other alternatives, such as maple syrup, agave and date syrup, all derived from plants essentially cutting out the middle man. With bees being so important and becoming so scarce, shouldn't we be doing everything in our power to protect them?


Resources -
https://phys.org/news/2016-01-complex-worldwide-bee-declines.html
http://www.bbc.co.uk/guides/zg4dwmn
https://friendsoftheearth.uk/bees/honey-ethical-guide
https://www.peta.org/issues/animals-used-for-food/animals-used-food-factsheets/honey-factory-farmed-bees/

Wednesday, 9 January 2019

Are Fireworks Damaging Our Environment?


Happy new year! Our beautiful planet has taken another journey around our sun meaning that we celebrate with over the top and elaborate firework displays and excessive drinking. Whilst watching the London fireworks on TV, I couldn't help but notice the large amount of smoke being emitted which got me thinking could these beautiful sparks of light actually be having a big impact on the environment?

A picture of fireworks. From pixabay.com

Before looking at the impact I was curious what these were actually made of. In the simplest form, fireworks are tubes filled with gunpowder, wrapped in flash paper and attached to a fuse, hence the explosion. However, to create the sparkle and the colour aluminium, iron, steel, zinc, or magnesium are added as these ensure that fireworks will burn for longer and brighter. Compounds of strontium, lithium, sodium, barium or copper are added to change the colour as these react with heat differently to produce different coloured flames, thus creating the beautiful displays we see twice a year. These additions are the biggest concern as in high concentrations, they can be toxic for both humans and wildlife. The fireworks create particulate matter containing the toxic elements that will eventually settle on land and, if landed on soil, can be taken into the plant system via the roots and enter the food chain via bio-magnification. Aluminium alone can affect the functions of gills in fish as it acts as an inhibitor for the enzyme responsible for the uptake of ions and will therefore reduce fish populations and any predators feeding on the poisoned fish.

Another issue is the smoke caused as it increases particulate matter levels and increases carbon dioxide concentrations within our atmosphere. Particulate matter is a collection of particles (under 100 micrometers) that are either produced naturally or, in the case of fireworks, are produced from chemical reactions. Minerals (including aluminium, silicon, iron and calcium) are producers of particulate matter and, as previously stated, some of these are included in the makeup of fireworks but this composition varies depending on colour. The monitoring of particulate matter has shown that pollution episodes (above average concentrations) occur around January and November implying there may be a link between New Year and Bonfire night. During these winter months, high PM concentration have been linked to temperature inversion that are responsible for trapping pollution at ground levels, in turn increasing our exposure time. There are a range of health impacts ranging from respiratory illness to affecting the cardiovascular system with these risks being greatest during inversions which is shown by the increase of breathing problems of over 30% during Diwali. However, there is also a large environmental impact the first one being the impact of photosynthesis as PM deposits on the leaves of green plants reducing the contact to sunlight. This can reduce the rate of plant growth and therefore lessening the amount of food available to primary consumers. This can affect of the rest of the food web as it reduces energy available for higher tropic levels (basically reducing food for top predators) especially if the primary consumer populations are affected.

The chemical process of lighting the gun powder has been linked to the pollution of sulphur dioxide and nitrogen dioxide, both of which are major polluting gases. Sulphur dioxide is directly linked to the production of acid rain that can corrode metal and limestone structures as well as the exoskeletons of invertebrates. As many small invertebrates are the basis of any food web, this can again affect higher tropic levels and affect the food availability within the ecosystem. This can also affect the pH of water bodies and has the potential to cause ocean acidification which is a cause for coral bleaching. As our coral reefs are currently in decline shouldn't we be doing everything in our power to reduce acid rain, especially for things that are not strictly necessary?  Nitrogen dioxide has been linked to increased eutrophication, decreasing the sunlight available to a water supply by the growth of algal blooms. This causes a decline in oxygen from a lack of photosynthesis affecting the populations of marine organisms thus reducing biodiversity. This, again, can affect human health and can cause nitrogen dioxide poisoning as it can irritate the mucous membrane in the lungs.

So with these major environmental impacts shouldn't we be focusing on reducing our use of fireworks rather than spending millions on elaborate firework displays every year? With so much advancement in scientific knowledge, it does seem strange to me that we have not found a more sustainable alternative, despite the fact that firework displays are unnecessary to our well being but I can see that it is a tradition and culturally we associate these with celebrations. With the development of renewable energy sources, light and laswer shows could be an alternative if done safely. With climate change being on the tip of everyone tongue, I think we should be looking at smaller issues, like fireworks, in order to help the bigger picture.


References

Sunday, 16 September 2018

What Does Being 'Eco-Friendly' Really Mean?

Eco-Friendly Cleaning & Storage Products
Image from https://www.lifestorage.com/blog/storage/celebrate-earth-day-eco-friendly-cleaning-storage-products/

Is it just me or has being 'eco-friendly' become very on trend recently? With every supermarket having a larger range of environmentally friendly products and more people making more ethical choices being environmentally friendly seems to be growing within the general public. The big question is do we actually know what this means or are we just trusting labels that say 'green' to improve our sustainability?

With many people, my mother included, bot actually knowing what the term 'eco-friendly' really means. When I spoke to my mum about this she just thought it meant minimising your impact on the environment but realistically she had no idea how to do this. Environmentally friendly is defined as "that has no or the least possible impact on the environment" (The Free Dictionary) which appears to be the standard definition so well done mum. Basically it means acting in a certain way to make your impact on the natural environment to a minimum in order to promote and live a more sustainable life to the best of your ability. Let's just accept that (as sad as it may be) in modern day society but we can make a more conscious effort with many people turning to these labelled, eco-friendly products in an attempt to cut their carbon footprint. There are also a few simple easy ways to help you achieve a more eco-friendly lifestyle.

Not to get on my vegan high horse, but one big way to do this is to cut down your meat consumption. 18% of all greenhouse gas emission is from animal agriculture but these emissions are expected to rise 80% by 2050. If you think about it, we have the emission from transporting livestock, heating the farms and fertilisers. I could go on an on about how this is important but I would recommend you watch Cowspiracy if you don't believe me.

Another way is to look at your energy and better ways to conserve it in order to reduce our fossil fuel consumption to help reduce that ever looming climate change. Simple ways such as turning off your lights and maximising the amount of daylight can not only lower your carbon footprint but can also help slash your energy bill saving you a pretty penny. Did you know that dusty light bulbs can reduce the light output but up to 50% meaning you're going to need more electricity and bulbs to lighten up your living room. Another way is when purchasing new items focus on those efficiency labels!! Always make sure they're in the green to help slash that carbon footprint. Check out Conserve Energy for more ways to save energy (and money).

Another way is to buy recycled products. One simple swap is to buy the toilet paper (which is defiantly available from Tesco and Sainsbury's) that is made from recycled paper that reduces the amount in landfill, the amount of chemicals used for bleaching and reduces the amount of raw materials we use. There is also recycled stationary available which is perfect for students, such as myself, looking to be much more green. The Green Stationary Company offers a wide range but I have seen some of these around the supermarket so just keep your eyes open and read the packaging. There are plenty of products out there for you to try so get researching and feel free to share in the comments.

What Your Recyclables Become
Image from Department of Environmental Protection
https://www1.maine.gov/dep/waste/recycle/whatrecyclablesbecome.html
 Another key way to to maximise your use of reusable products this can include reusable cups, toiletries and containers to help cut the dreaded single use plastic present in your home. On average 50% of the plastic we use are thrown away after just one use swapping to a reusable razor (or even a straight razor) is just one product to can by to help cut waste. In fact, my razor is made from recycled yogurt pots (check me out). Did you know that the average woman uses up to 16,800 disposable pads and tampons throughout her lifetime?  With all of this going to landfill and with a high amount of plastic used, these defiantly do not count as green. Many environmentally conscious women are turning to washable cotton pads as well as menstrual cups which are definitely available from Boots and Superdrug. To get closer to that desirable 'eco-friendly' status, we should aim to cut our dependence on single use plastics. 

So overall, being eco-friendly is making an effort to cut our carbon footprint and buy sustainable. I would recommend you get online and look at products to help you achieve this and look for alternatives next time you're in the supermarket. Maybe even shop locally and check out your locally fruit and veg stall like I do every week. However, it is important to remember that in modern society it is nearly impossible to be 100% green. Just do your best and be conscious of your impact on the environment and do your best to cut it and reduce it as much as possible.


Resources -

Thursday, 13 September 2018

Ghost Fishing: The unseen problem in our oceans

Fishing for Ghosts: the removal of derelict fishing gear ...
photograph of ghost gear on the sea bed -
https://www.ecosia.org/images?q=ghost+fishing#id=5D43E26A116A7D8952B16078B4095F728572BE87

With the growing human impact on our oceans being widely mentioned in the media (thanks Blue Planet) things like using plastic straws have fallen out of fashion with the general public being more conscious of our impact on marine life. Although I am so happy about the interest in our oceans, plastic straws only make up a small percentage of plastic waste and most of it is waste from the fishing industry. This got me thinking about ghost fishing, a subject I studied during college, that has such a huge negative impact but is barely spoken about in the media in an attempt to raise awareness of this growing problem.

So what is 'ghost fishing'? It's when old fishing equipment that is no longer in use has been abandoned in our oceans and still traps fish and other marine animals including the beloved sea turtle. This creates a positive feedback mechanism as the trapped fish act as bait for larger fish, capturing and endangering a greater number of marine species. The abandoned equipment also causes alterations to the sea floor, damaging the sea bed and the habitat for species including sea stars and crabs.

The abandoned 'ghost gear' accounts for 10% of all marine litter (which is a lot higher than plastic straws) and entangles, on average, 11 whales annually in West Coast America alone so imagine how many become injured or die globally because of this abandoned equipment. With an estimated 640,000 tonnes of fishing nets (not including lobster traps and other fishing gear) polluting our oceans we are putting a huge number of rare species at risk unnecessarily. With a single net entangling between 30-40 marine animals, these have a severe impact on the ecosystem as they have been known to entangle a huge range of species from sharks and whales to sea stars and small fish. Another environmental issue is the damage to habitat. Heavy equipment ,such as crab and lobster traps, sink to the bottom and disturb the sea bed and can be responsible for dredging as well as smothering organisms that live on the sea bed including sea grasses and crabs. Coral reefs are at great risk as ocean currents carry heavy traps that can destroy the coral habitat.

Currently there are several programmes an initiatives globally that aim to tackle and reduce this problem including the Global Ghost Gear Initiative (GGGI), which DEFRA is participating in, that aims to improve the health of our marine ecosystems by removing discarded fishing gear. One thing they do is collect evidence and information including how much equipment has been collected and it is mapped to work out any trends and possible impacts to biodiversity by locating any hotspots. They also aim to define and enforce polices, including management of gear on board to ensure that no equipment is lost at seas particularly in stormy weather.  These are just a few simple ways this initiative is helping this growing issue and with participation from governments, NGO's and the private sector the GGGI will continue to develop further and hopefully achieve the aim of cleaner oceans. One example of a participating organisation is KIMO international which run the GGGI Solution Project in Scotland which is responsible for removing 50 tonnes of ghost gear from Scottish coastlines.

Ghost fishing has become much more regulated by governments who are aiming to punish those responsible but in my view much more can be done to tackle this growing issue starting with public awareness. Let's focus less on plastic straws and more on larger marine debris that has a much larger, and more fatal impact.


Resources -



Sunday, 2 September 2018

Is organic food better for the environment?

Image result for organic crops
Organic Food photograph, http://csglobe.com/booming-organics-u-s-farmers-forced-to-import-organic-crops-to-meet-non-gmo-demand/

The UK organic food industry grew 7.1% from last year and is continuing to grew in popularity with consumers as many believe this will not only benefit our health but the environment. With growing concerns about GMO's and pesticides driving this belief, it is no wonder that the £2 billion industry continuing to grow with every supermarket seemingly expanding their organic range. This got me thinking if there was any truth to these claims or is this just a marketing tactic to get us to buy more expensive food?

So what does organic food really mean. Well according to DEFRA, organic food is defined as "the product of a farming system which avoids the use of man-made fertilisers, pesticides; growth regulators and livestock feed additives. Irradiation and the use of genetically modified organisms (GMOs) or products produced from or by GMOs are generally prohibited by organic legislation." This means that organic farms are working to achieve a more sustainable food system that, in theory, is more socially, economically and (most importantly) more environmentally sustainable. Basically organic farmers aim to produce a more 'natural' farm environment by using nothing that has been man made which sounds like this is better for the environment but is this really the case?

Firstly lets look at pesticides which are chemicals that are often sprayed on crops to kill pests in an attempt to increase crop yields and subsequently profits. Obviously chemical pesticides, including herbicides and insecticides, are man made and every food business has to comply with UK legislation and regulations that limits the Maximum Residue Levels. Despite the strict regulations and monitoring there are some major issues that threaten the environment. One main issue is that pesticides often threaten and kill non target organisms, including key pollinators such as bees, which are vital to any ecosystem. One example of this is DDT which was widely used after WWII and was found to be toxic to many marine animals such as seas shrimp. However, the main issue was caused by biomagnification in birds higher up the food chain as it caused egg shells to become thin, causing a decline in juvenile populations. There is also the issue of leaching and runoff that often occurs after periods of heavy rainfall which is a fairly common occurrence in the UK. This often leads to the polluting of nearby water sources which, again, threaten aquatic life but also affects the surrounding terrestrial wildlife. Nearby soil can become polluted and/or reduce soil fertility, potentially causing a decline in wild plant population. This may lead to a smaller habitat for small mammals and insects so in theory, organic food could help to improve biodiversity as it stops the use of toxic chemicals which can build up in the surrounding area.

Obviously the main disadvantage of organic food is that it is more expensive so many of us opt for the cheaper option but I'm more interested in the environmental impact and the possible sustainability. One main threat is that organic food requires a greater land area with studies showing that organic farms require 84% more land to produce the same yield as a conventional farm. There are several reasons for this such as plants grow a lot quicker on conventional farms so a greater number of crops can be harvested. Obviously this is due to the use of fertilisers, pesticides and GM crops but it can be argued that conventional farms allow use to create more space for wildlife and biodiversity. If the land would actually be used for biodiversity is questionable but the argument and potential is there. However, this does make conventional farming more socially sustainable for future populations which could be needed as our population continues to rise.

Organic farming also has a much lower carbon footprint without the use of chemical fertilisers and pesticides that are often made from petroleum based products. This means there is less greenhouse gases being produced as well as there being a more efficient use of our finite resources. Organic farms also have a much higher rate of carbon sequestration or in other words organic farms remove more greenhouse gases from the atmosphere, consequently helping to reduce the enhanced greenhouse effect. it has been recorded that roughly 575 - 700 kg per ha are removed annually in temperate areas which is almost double that of conventional farms. It is believed this is due to the treatment of soils which allows smaller plants, such as grass, to grow and this is also aided by crop rotation making organic farms more environmentally sustainable when talking about climate change.

Another potential environmental issue is that organic crops may attract a greater population of pest species that could have an impact on surrounding biodiversity. Although there are methods of biological pest control, such as companion planting and importation, the use of pesticides and herbicides has been proved to be more effective at completely irradiating pests. Without these methods there is a possibility that the number of invasive species surrounding the organic agricultural land will increase. However, this is a very weak argument as it could be argued that and biodiversity saved could be threatened by the pesticides anyway as they have been known to kill non target organisms.

Looking at all the evidence, I would come to the conclusion that yes organic crops are much better from the environment as they have a much smaller ecological footprint. However, this does not mean they are more sustainable as there is a significantly higher economic cost as they are more expensive to consumers and more expensive to grow. With organic crops yields averaging 20% lower than that of organic farms, organic food lowers food security also lowering the sustainability. So yes, they are better for the environment and the wildlife but organic farming methods do need to improve to increase the overall sustainability.

References - 



Saturday, 11 August 2018

Easy Ways To Help Our Planet

Hotel ‘greenwashing’ dirties eco-friendly reputation | WSU ...
Sue McMurray, WSU,
 https://news.wsu.edu/2015/10/01/hotel-greenwashing-dirties-eco-friendly-reputation/

With climate change being a current issue and continuing to grow in concern, it is more important that ever that we all do our part to help protect the environment. When talking to friends and family, many of them believe that it will be far to difficult or expensive. Granted the complete zero waste lifestyle, although possible, does take a lot more effort than a 'conventional' lifestyle but there are several simple changes or steps every homeowner can take to reduce our environmental impact.

First thing is to buy second hand or recycled goods. This can include using the library, charity shops or online stores such as Vinted (which I have spent too much time one ... whoops) which offer absolute bargains that will not only save you money but it will also helps reduce the demand for natural resources that are finite. Not to mention a reduction in the use of chemicals, dyes and synthetic fibres that end up polluting both our terrestrial and aquatic environments. Materials such as polyester (which makes up 60% of all clothing) and nylon is manufactured using petroleum which we all know contributes to the enhanced greenhouse effect as well as leading to the creation of micro-plastics due to their non-biodegradable nature. With on 20 items of clothing being manufactured per person annually, it is no wonder that the fashion industry is the second most polluting industry globally and accounts for 10% of the global carbon footprint which makes sense if you take into account the transportation, soil erosion, water use and waste production.

Did you know it has been reported that paper coffee cups are responsible for the cutting of 6.5 million trees? Seems like a ridiculous number for a single hot drink. These cups have also been linked to the consumption of 4 billion gallons of water. Most of us think this isn't an issue if we just recycle them. Well you're wrong. These cups are coated in a polythene resin that makes it water proof which unfortunately means that the 16 billion cups we use every year end up in landfill. The simple solution is to take your own cup. I keep mine in my bag all the time and comes in handy at work, the library or just when I'm out and about. You can even buy fold up ones which take up less space. You can even save money with Costa and Starbucks offering a 25p discount and Pret offering double that. It may not seem like a lot but every penny counts!

Did you know that the meat industry is responsible for 20% of greenhouse gas emissions? Going veggie even just for one or two days a week will help to cut your carbon footprint massively. Even though I think a meat free diet is the best, cutting your meat intake will significantly reduce your environmental impact. With agricultural emissions predicted to increase 80% by 2050, it is more important than ever we start to understand the link between our diet and environmental damage. I could write pages on this so I might write a full post on this. I highly recommend that you watch Cowspiracy on Netflix as it sheds light on the truth about this link.

Although the 5p bag charge has encouraged us to bring our own bag, there is still those rare occasions we do buy one. Globally, we are using roughly 500 billion single use carrier bags annually which puts our environment at great risk with thousands of animals dying every year from ingestion alone. These bags easily end up in our oceans and lead to an increase of microplastic when they breakdown in sunlight and we are all aware of those dangers. My advice is to buy one of those fold up bags and keep them in your bag. That way when you buy something unexpectedly (or something you maybe shouldn't have) you'll be prepared to help the environment.

Get some reusable containers and prep lunch the night before. This will stop you from buying those supermarket meal deals that use a huge amount of single use plastics which have a huge ecological footprint. Obviously glass containers are better as there is less petroleum used, they're more durable and are easier to recycle. Not to mention they don't produce those dreaded microplastics!! You can also freeze leftovers for those days you can't be bothered to cook which may reduce the amount of take out you eat, again reducing the waste you produce. In 2015, the UK sent 7.3 million tonnes of food waste to landfill. Not only is this costing families and average of £700, but the food will breakdown in the landfill which will lead to an increase in methane production. Over a time period of 20 years, methane will do between 25 and 100 times more damage carbon dioxide meaning the extra from last nights dinner you threw away, could actually impact our environment.

If you're a keen gardener you should definitely have your own compost heap. Not only will this save you a huge amount of money long term (seeing as a bag of compost is roughly £7) but it will help reduce your environmental impact. Provided you turn the soil regularly, it will minimise the amount of methane product as less food waste makes it to landfill. Most pre-bagged compost is peat based, which is the decaying remains of plants such as sphagnum mosses, that has been mined for peat bogs that are often SSSI's. Unless the bag is clearly labelled 'peat free' the average bag of compost is on average 70% peat meaning that by buying these bags you could be encouraging the destruction of a rapidly declining habitat. In Ireland, roughly 80% of peat bogs have been destroyed which is a large number considering that peat bogs covered 17% of Ireland's land before we began mining. This put creatures, such as the otter and the peregrine falcon at risk of a declining population. There is the other issue of the large amount of greenhouse gases emitted by peat mining. Peat bogs are a large carbon sink and the draining process releases a large quantity of carbon dioxide amongst other greenhouse gases. Annually peat emits roughly 400,000 tonnes of carbon which is also caused by the spreading of peat compost that rapidly turns into carbon dioxide. Needless to say composting your food waste, from fruit and veg to coffee beans, is a great way of cutting your impact on landfill and reduce your carbon emissions. Not to mention you don't need that nasty plastic packaging that compost comes in.

Susan's Birding and Nature Blog: Admiring the Bog
A photo of a peat bog -
Susan Cooper, https://suzancc.blogspot.com/

Obviously there is so much more we can be doing, like using metal reusable bottles and seperating our waste, but these are just five ideas that are so simple to try. If you have any other tips feel free to share them below!




References -

Thursday, 2 August 2018

Is biodegradable plastic a thing and is it a solution?

Image result for biodegradable plastic
Photo from https://www.thenational.ae/lifestyle/can-plant-based-degradable-plastic-solve-the-problem-1.746423

With the recent series of Blue Planet highlighting the magnitude of plastic pollution in our oceans, the general public have taken a greater interest in reducing the plastic we use which is definitely not a bad thing considering the fact that annually eight million tonnes of plastic waste enters our oceans. We as a society are heavily dependant on plastics with even the most eco-friendly of households still throwing away a large amount of plastic. 300 million tonnes of plastic are made each year 10% of which is recycled and just over 40% of plastics only being used once before discarded. Needless to say I get very excited when I see supermarkets seeing biodegradable bin liners and cling film but are these truly environmentally friendly and a permanent solution to our plastic problem?

Firstly, there is a major difference between bioplastic and bio-degadable plastic. Bioplastic are made from completely renewable sources that are biologically based ranging from corn oil to starches. these mean these breakdown naturally in the environment and are 100% compostable as they only contain organic matter. Bio-degradable plastics are still chemical based and still include petroleum based chemicals but have additives that causes a quicker breakdown in the environment. The words photodegradable and oxydegradable are probably a better way to describe these types of plastics. Due to the chemical content, there can still be toxic residue produced meaning these plastics cannot compost as some of the chemical residue can inhibit plant growth, unlike the bioplastics. There have also been reports that bio-degradable plastics still produce micro plastics which are easily ingested by fish and plankton and bioaccumulate up the food chain. It has been reported that in the North Atlantic Ocean, 73% of fish have ingested some form of plastic. Even though these bags do produce less plastic fragments and breakdown quicker than conventional plastic, bioplastic seems to be a better solution to this problem as it stops plastics from entering the ecosystem. However, my view is any option is still better than producing more conventional plastic.

Ignoring these differences, I thought it would be interesting to compare the differences between biodegradable plastics and conventional, petroleum based plastics. The first major advantage is that there is a lower oil consumption, mainly during the manufacturing process. Globally, 8 to 10% of all oil is used to created plastic and in the USA alone, 12 million barrels are used every year just for carrier bags. The lower fossil fuel consumption will lead to less CO2 emissions and subsequently a reduction in the enhanced greenhouse effect. However it does put into question if we would actually be saving oil because it will more than likely still be used, just for other purposes. Despite this, biodegradable plastics produce, on average, 0.8 tons of CO2 during production which is much lower than conventional plastic that produces 3.2 tons. This means the carbon footprint is significantly lower as well as reduced consumption of finite resources. Obviously 100% bioplastics are renewable but biodegradable plastics still require far less oil.

Another key advantage is the quicker rate of decomposition means that landfill and solid waste will be produced. Although there will be a need for composters, this will result in a much cleaner environment and the impact of plastic on biodiversity will be reduced. Considering that annually roughly 10,000 turtles consume carrier bags (as they mistake them for jellyfish) and decline should be accepted and the quicker rate of decomposition should help to reduce this number.

One main disadvantage is more of a social issue (presented by environmental sceptics) and is that it will encourage people to litter. To some extent I agree with this statement because one of the key points of anti litter campaigns is the environment and laziness could kick in. Would all of the general public stop to pick up their rubbish if they knew it would biodegrade? It is also worth pointing out this is still not the solution to litter and our waste problem as even though the residence time is significantly shorter, they still remain in our environment for a long period of time which could still lead to ingestion by wildlife and pother issues such as water pollution.

Another issue is cost. Not only are biodegradable plastics more expensive to make (due to a more complex manufacturing process) but they are also more expensive for consumers. As a student, I can say that my peers would be less likely to spend more on the simple things like bin liners and other single use items. This may also be the same issue for families or others on a budget. Even though they may only be £2 extra, to some that is a meal or a drink out. Given the choice many people will chose the cheaper option and until we can reduce the manufacturing process I fear that petroleum based plastics will still be the norm.

Whilst I believe bio-plastics are the future, the technology is very limited meaning it will be a while before they completely replace 'normal' plastic. They say you vote with your dollar (or pound) so as consumers we need to make small changes to the biodegradable options to encourage supermarkets to invest in bio-plastics.



References -

Sunday, 8 July 2018

The Five Plants You NEED To Grow

With urbanisation continuing to rise and open green areas in rapid decline, how we use our gardens is becoming increasingly important for the wildlife and the environment. Around 1,000 of our agricultural plants rely on pollinators to grow to increasing the habitat available for birds, bees and bats is important for our food system and larger populations leads to a higher food production. They are also the basis of the ecosystem and the food chains as they contribute to the growth of wild fruits and green plants that feed the primary consumers such as rabbits and wild mice. They can also protect habitats of large economic and cultural significance. Experts say that the majority of plants should be native to this country (around 70%) to replicate the natural habitat of British wildlife. Another thing to remember is to allow plants and organic matter to decay to attract other invertebrates ( such as woodlice) and larger mammals like hedge hogs that are also becoming more vulnerable.  So, here are the top five plants to include in your garden to help see these populations rise.

Lavender - 
Not only will these add a beautiful colour to your garden and smell amazing, but pollinators love them. They provide a large amount of nectar and pollen which can increase bee and butterfly populations in particular. Ladybirds also love them which eat pests such as aphids and the smell also repels other pests and can act as a natural form of pest control which could also benefit any vegetable patches you may choose to grow.
Image result for lavender plant
Photo from https://www.theflowerexpert.com/content/giftflowers/flowersandfragrances/lavenders

Holly - 
The holly tree is an evergreen plant meaning it grows all year round and provide a food source for birds in particular and can ensure populations survive winter. With over 400 species of the holly plant, it attracts a wide range of wildlife from thrushes and blackbirds to butterflies and moths. Due to its evergreen nature it is used for nesting and can be used by small mammals during the hibernation season.
Image result for holly plant
Photo from https://www.saga.co.uk/magazine/home-garden/gardening/plants/trees/how-to-grow-holly-and-get-berries

Hawthorn - 
Hawthorns are one of the most common shrubs in the UK and attract around 150 species of insects and can provide a habitat for birds such as Goldfinches and Thrushes as it produces berries during the autumn. When the flowers bloom during the summer months, bumble bees love this plant and it also provides a habitat for ladybirds and earwigs. It is also a great food plant for caterpillar and can boost butterfly populations in your garden.
Image result for hawthorne plant
Photo from https://www.nwcb.wa.gov/weeds/english-hawthorn

Honeysuckle - 

Honeysuckle is so important to a wide range of species, particularly pollinators due to the incredibly sweet nectar it produces. . It also is important to the rare white admiral butterfly as the caterpillars will only feed on this plant. It also provides food and shelter for small mammals, in particular dormice.
Image result for honeysuckle
Photo from https://www.gardenia.net/plant/Lonicera-fragrantissima-Sweetest-Honeysuckle

Thyme - 
Experts encourage gardeners to include a wild range of plants including herbs. Thyme is a great one to grow as it provides nectar for bees and other pollinators but the ground cover it provides creates a safe habitat for other small invertebrates including detritivores that can improve the soil quality and organic matter content.
Image result for thyme
Photo from http://www.johnnyseeds.com/herbs/thyme/orange-thyme-seed-2934.html


Obviously, I'm not saying that if you don't plant these you don;t care about the environment because there are a range of factors to take into account such as the type of property you own, allergies and any pets you may have. If you have a large garden be sure to include a range of plants from trees, shrubs, flowers and herbs. Also don't forget to include grass as some butterflies have been known to lay eggs in the tall blades. In my opinion, we all need to be doing our bit to improve insect populations as they are vital for our way of life so even just planting a few flower pots along a balcony of a flat is a great start and should be encouraged.

Saturday, 30 June 2018

Are Electric Cars the Answer?

Related image
Photograph from Financial Tribute, October 2017 -
https://financialtribune.com/articles/auto/74460/china-electric-car-output-to-hit-1m-next-year
With greenhouse gas emissions continuing to rise combined the immanent threat of peak oil many of us are turning to hybrid or electric cars to get us from A to B. With 1.9 million electric cars being used globally in 2017, there has been an increase in both interest and investment in the electric car industry with global car manufacturers creating for 'eco-friendly' electric cars, the most popular of which being the Nissan Leaf. However, is purchasing one of these cars actually reducing your ecological footprint and fossil fuel consumption at all? And are there better alternatives we should be investing in?

Firstly lets look at the total greenhouse gas emissions. Per km, the average petrol run car produces the equivalent of 125g of CO2 whereas the average hybrid produces 82g per km. If your car were to be a pure electric car, the emissions would be even lower averaging at 57g per km. This is mainly due to the fact that no combustion occurs in the engine of an electric car but this doesn't mean they're completely green. Firstly, the average electric car produces 3.3 tonnes more CO2 during the production in comparison to the average for petrol cars. There are also the greenhouse gases produced during electricity generation as during 2015 roughly 66% of electricity was generated using fossil fuels, the so called 'green' cars are still contributing towards the enhanced greenhouse effect. However, there is evidence to suggest that electric cars have the potential to produce 80% less greenhouse gas emissions compared to a petrol car. Personally, I believe this to be possible as it has been proven that electric cars are more energy efficient, but the amount of emissions will vary depending on the nations energy mix as well as the future development of the car batteries. Overall, there are fewer emissions produced by electric cars and they do not produce any exhaust emission resulting in fewer NOx and PM emissions which will help improve air quality, particually in urban areas. Taking all these into account, statistically electric cars are better for the environment in terms of emissions and can be shown to improve air quality.

Despite this fact, fossil fuels still account for the majority of electricity generation with 51% of the UK's energy in 2016 being generated by natural gas and coal. This means that greenhouse gases will still be being produced and with the current geopolitical issues surrounding natural gas, the growth in electric cars could put a strain on our current reserves which can be described as touchy at best, particularly in Ukraine. Although less oil is used for electricity generation, electric cars could lead to a growth in the coal industry and open cast mining in particular has a huge environmental impact. There is large habitat damage which reduces biodiversity and puts a strain on vulnerable species due to the removal of vegetation that is considered 'overburden'. There is also the issue of sulphur dioxide emission, increasing acid rain and the release of toxic trace element polluting the water supply. The increase in demand for electricity has the potential to increase the amount of nuclear power stations as nuclear fission has an extremely high energy density, much higher than that of any current technology. There are many growing concerns as even though there are no greenhouse gas emission and it is recyclable, there is the issue of nuclear waste production and radiation which threaten the health of workers as well as the surrounding area if radioactive dust particles are released into the atmosphere. The unstable nature of radioisotopes means that there is a risk of a nuclear reactor explosion which could mean that occurrences similar to Fukishima and Chernobyl could become more common if the demand for nuclear energy would to increase.

The other main benefits is the economic savings. Most electric cars are tax free which means a saving of between £140 and £2070 annually, depending on how polluting your car is. There is also the reduced maintenance cost as no greenhouse gases and polluting exhaust gases mean there is no need for oil changes and the engine is kept cleaner for longer. There is also the Plug-in Car Grant meaning there is an additional saving with a reduced buying price but it is more than likely this grant will not last long if electric car sales begin to rise.

The biggest con however, is the lack of infrastructure available. With charging points still being relatively uncommon, many people would not feel comfortable using a pure electric car for a long journey. The batteries also have a long charging time meaning that already long journey could take twice as long and drivers will be forced to use the limited charging stations available which could could cost a pretty penny. Without the infrastructure available, it is unlikely many users will see the benefits that are being advertised as many see this as there being an increase risk in breakdown and just as inconvenience especially for those who commute regularly. With a lack of infrastructure personally I cannot see the demand for pure electric cars rising but I feel that hybrid cars are a solution to this problem as this removes the risk of running out of fuel and eliminates that risk of there being no charging stations on route.

Overall, I feel that there are better and more reliable alternatives to pure electric cars that are greener. Personally I feel that with a development in the hydrogen engine (even though it is expensive and not available yet) the future of cars will be more sustainable. This would also combat the major environmental issue of the nickel needed for car batteries and have an even lower ecological footprint.



Resources -


Monday, 4 June 2018

Can Cotton Be Sustainable?

Skyrocketing electricity costs makes cotton-growers take ...
Image from www.heraldsun.com.au

I was in Primark the other day (not the most eco-friendly I'll admit) and I noticed that they had a sustainable cotton section. Cotton farming requires a huge amount of land that is often derived from unsustainable deforestation methods (i.e. slash and burn) and the growing and harvesting process has a huge environmental impact so I was happy to see a big retailer trying to reduce the environmental impact. However this did get me thinking what made this cotton sustainable? Can cotton farming ever be sustainable?

Firstly why is cotton farming so unsustainable? 

Cotton farming has huge ethical and environmental implications the first of which being the huge water consumption with the average water footprint being 10,000 litres per kilogram. With 730 million without access to clean water globally, cotton farming increases water scarcity in the areas with the greatest need for water. Cotton is also considered the 'dirtiest crop' by many organisations, such as the EJF, with cotton farming using 16% of all insecticides. Over 98% of all insecticides kill no target species causing a decline in the main pollinator species. There is also a risk of contamination of aquatic environments from runoff causing a decline in aquatic organisms. There are also health implications for workers and with 99% of all cotton farmers living in third world countries, there is a lack of safety and hazard testing. For example, a common pesticide used for cotton farming is easily absorbed via the skin and has the potential to kill. Other health implications of insecticides include respiratory illnesses, memory loss and seizures. There is also a huge amount of pollution produced as a result of deforestation and the chemicals used in the dyeing and bleaching process causes a large amount of environmental degradation. These chemicals include heavy metals and benzidine/chlorine bleaches which have been linked to an increased risk of cancer. 

There is also a huge socioeconomic impact with the workers in third world nations receiving low wages and the rich TNC's receiving the majority of profits, driving the poverty cycle. The majority of workers receive wages lower than the amount needed to meet their basic human needs. Many of these workers work long working days (with hours above the limit set by the International Labour Organisation) and overtime often goes unpaid. There is also a huge number of children working in the fields and Uzbekistan has been outed for shutting schools and forcing children to work in cotton fields. 

This begs the question what is the difference between 'normal' cotton and sustainable cotton, like the one used in Primark?

Sustainable cotton is defines as the sources being 'either organic, better or recycled' which has the potential to vastly reduce the environmental footprint of cotton farming. With the greatest amount of energy being used, resulting in a large amount of pollution, is during the extraction and processing of cotton so recycled cotton will greatly reduce the ecological footprint. Cotton that is certified GRS (Global Recycle Standard) ensures that cotton has been produced with minimal environmental and chemical impacts throughout the entire production process. This ensures the cotton farm has a chemical management system in place to meet all the legal requirements and to reduce the amount of pollution and run off. It also ensures that all companies meet the set target for energy use (as set by Textile Exchange) and there are frequent reviews to help improve energy efficiency. there are also set targets for water use and air pollution levels helping to reduce the environmental impact further.

Organic is defined as "produced or involving production without the use of chemical fertilisers, pesticides, or other artificial chemicals" in the Oxford dictionary. Although natural pesticides and fertilisers can still be harmful, there is less contribution to acidification and eutrophaction, reducing the impact on aquatic life and the soil in the surrounding area helping both the local people and the biodiversity. The chemicals used to treat regular cotton can bio-accumulate within the food chain meaning the impacts can be seen in the top predators even though they are not in direct contact with the chemical as it is stored in the fatty tissue of smaller, prey organisms. Pesticides have been linked to 67 million annual deaths in birds in the U.S. alone due to the bio-accumulating properties. With less pesticide use, there is a greater chance of bio-diversity recovering in cotton farming areas.

Image result for certified organic cotton label
Photo of certified organic cotton labels from babycribbed.com

There are also major differences to the workers, with organisations working to improve working conditions. The Better Cotton Initiative ensure that farmers receive more of the profits, better working conditions and healthcare and has been based on UN labour standards. This mean there is a better quality of life for the workers as there is less fear of discrimination and better workers rights so they are not afraid of becoming unemployed if they do not receive a pay cut. The increase in disposable income means there is a greater chance of improving sanitation, education and access to clean water and food. The knock on effects mean that workers under these initiatives have a chance at a better quality of life.

There are a large number of cotton standards and projects to help improve the sustainability but with less than 1% of the worlds cotton being certified organic, there is still a huge amount of demand and need for unsustainable farming methods to meet the huge demand. With 120.8 million bales (at 480 pounds each) being produced in 2017, more retailers need to enforce these farming methods to ensure the minimal environmental impact and ensure we have cotton as a resource for the future. However, in my opinion cotton is one of the most unsustainable materials and there are better options for retailers to invest in with a much smaller impact. For example, not only is hemp a more durable material, which will help reduce the production demand, but also requires half the amount of land that cotton does and requires less water at 2,000 L per kg. There are also more sustainable materials such as linen and soy silk showing there are materials out there that can improve the sustainability of the fashion industry. A life cycle assessment carried out but the Textile Exchange staes that organic farmed cotton was "significantly more environmental friendly" but organic cotton also requires more land than convential cotton as it has a much lower yield so some believe that it may lead to an increase in deforestation, questioning the sustainability of organic cotton. There are also more sustainable materials such as linen and soy silk showing there are materials out there that can improve the sustainability of the fashion industry.

Overall, my personal view is that recycled cotton is a better option than organic and conventional cotton due to the reduced chemical and land use. Despite this I do feel that there are better options available and companies should be investing in these materials. I do feel that some responsibility should lie with the consumer as there are alternatives such as buying second hand clothing and choosing your clothing brands more carefully.



References - 

Saturday, 5 May 2018

One Week's Worth of Plastic


So recently I've become interested in the zero waste movement and trying to cut down my plastic use. I feel that I do not produce a large amount of waste (seeing as I'm a single person household) and thought it would be interesting to test this and see how much single use plastic I throw away. I feel that this photo doesn't show how large this like actually was which also disappointed me because I truly believed I was making a conscious effort to reduce my plastic but evidently I was wrong. This got me thinking if zero waste is possible considering supermarkets cover everything in a toxic layer of plastic. Thankful I have alternatives, such as the market but for others it may not be affordable or accessible. Seeing as plastic is such a current issue why is it so hard to cut our use of them and who is really responsible for such high plastic consumption?

Obviously, the consumer holds the majority of responsibility because they chose what products they purchase and have the power to chose products with less plastics. However, I do understand the some families will be driven by cost and they may not have the option to chose zero waste options if they are more expensive. I did notice that Aldi (in my opinion) had one of the greatest unnecessary use of plastic and Aldi is known for being one of the more reasonably priced supermarkets. So this made me think if retails are ultimately responsible seeing as the majority of plastic is honestly just unnecessary. Do bananas really need to come wrapped in a single use plastic bag? This goes back to my belief that retailers should be held accountable for the unsustainable use of our finite resources.

Here are a few of the simple steps I have taken to reduce my plastic use:
- Bringing my own reusable cup
- Reusable shopping bags
-Buying plastic alternatives
- Bio degradable bin liners
- Buying loose fruit and veg
- Packing my own lunch in a reusable container

Friday, 13 April 2018

Should We Tax Plastic?

Recently the UK government has introduced a new 'Sugar Tax' which means that high sugar drinks have become a higher taxed item. The main goal is to entourage companies to reduce the sugar content of drinks to lower the price as part of a healthy living initiative. This got me think if a similar approach should be applied to single use plastics, specifically packaging. If you visit a supermarket everything is covered in single use plastic that just isn't necessary. I remember getting new toys a child and how difficult it was to remove the unnecessary plastic. My poor parents on Christmas must have cut themselves numerous times.Walking around the supermarket makes me think what actually needs it and the items with less plastic or are biodegradable are often more expensive. Shouldn't it be the other way around? With supermarkets creating over 800,000 tonnes of plastic a year I feel the government should be doing more to reduce waste production.

Related imageImage from The Gaurdian

Although the general public should be encouraged to reduce waste, companies should be targeted more in my opinion. My idea is that once a product has passed a certain amount of plastic (so over what is deemed necessary) they should be taxed to cover disposal and the environmental cost. This will make single use plastic items more expensive to consumers which in turn will also encourage consumers to seek alternatives for plastic. This could also result in large TNC's to invest in alternatives that are biodegradable and potentially tackle the ever growing micro plastic problem as there will be less plastic breaking down in our oceans. Did you know that 80% of plastic debris in the oceans come from land? The breakdown of these items create micro plastic fragments which are easily ingested by fish, particularly those lower in the food chain. This also causes chemicals to be released into the natural environment, such as BPA, many of which are toxic to living organisms.

 Not only will a plastic tax make fish populations healthier, but it will reduce the amount of plastic we, as the human population, ingest. We ingest a range of plastics that enter our bodies through contaminated food and water. One plastic we ingest is Polyvinylchloride (#3PVC), a key chemical in plastic food packaging, that has actually been linked to an increased rate of cancer and birth defects. With over a third of all seafood caught in the UK containing plastic, those with a high fish diet have the highest rate of ingestion. One study has shown that those with a high shellfish diet consume up to 11,000 plastic fragments.

We can't also forget that less plastic used for useless, and quite frankly stupid, packaging will reduce our oil consumption which is especially important as we are in danger of reaching 'peak oil'. With 8% of global oil use being manufacturing plastics, it would encourage better management and distribution of our shrinking petroleum reserves as well as reducing global greenhouse gas emissions.

Overall, I feel the TNC's should be held more responsible for their unsustainble use of plastics to reduce the amount of toxic plastic that we throw away and the only way to do this is with a financial incentive because we all know that is the only way to ensure this. I feel a plastic tax will make the plastic alternatives cheaper and therefore more widely used.

Further Reading

Sunday, 1 April 2018

Is A No-Growth Economy The Answer?

When I first discovered my passion for nature, I never thought I would have to study economics . In fact I thought these two subjects could never coexist. In fact it's actually quite surprising that the majority of economic growth comes from the ecosystem. Our economy is built on manufacturing and consumers paying for the manufactured goods. We build our economy on exports and the more the produce, the more we sell and the more we grow. The main question is what happens to these goods we we don't need them? The answer is they go back into the ecosystem as waste which can be through landfill or pollution.
Countries develop their economy by increasing production and thereby increasing consumption. However, in order to do this a large amount of extraction has to happen in order to get the necessary fuel and resources. And how do we get this? Deforestion, mining and basically any process that kills wildlife and causes our biodiversity to decline. 

So this poses the question, can the economy and the ecosystem grow and develop together? Short answer is no. As one grows the other shrinks and with us prioritising the economy, the ecosystem is continuing to decline. The theory and idea of ecological economics doesn't suggest we revert to a preindustrial society with no technology, but states we should maintain our current economy to avoid and limit future extraction. This will help to preserve our natural resource and the earth for future generations. This will also limit the disposal of waste going back into the ecosystem. If we can also reuse and develop our waste it will also limit the extraction process. Ecological economics calls for a shift from conventional economics to stop economic growth because we simply cannot sustain it. We need to stop growing. I mean imagine if every single country reached the same level of development as the UK or America. It simply is not possible. We need better allocation and management of our natural resources to save our planet.

So to summer use, the economy and the ecosystem are connected and if the economy grows (as every government wants to), the ecosystem will decline. Instead of making the production system an open system, it needs to become closed with a focus on reusing and repurposing waste rather than disposal. Society also needs to shift away from a consumer based economy, in a sense. We need to stop buying what we want and what we need. We need to reduce all the unnecessary stuff we have that damages our environment. 

Thursday, 29 March 2018

Only One Earth

We only have one Earth. No plan B, no second planet tucked away at the back of the solar system. So why are we destroying it? Money? Development? Or are we just oblivious to the fact we need to change? 

From a young age the natural world has fascinated me. It started with a love for animals which made me want to become a vet and help save our beautiful companion animals. This developed into a love for being outdoors and a want to explore all the world has to offer by experiencing all the amazing creatures I'm their natural habitat. But as I grew older I realised the danger the natural world was in and the scale of it. I remember being horrified in school learning that people we willing to chop down our rainforests and damage our oceans for fuel and resources that would eventually run out and what made it even worse was that the burning of these fuels isincreasing climate change. This made me want to take my passion for the environment further and lead me to !y current uni course environmental science. I decided I was going to do my part to protect and conserve the diverse wildlife on our planet because once it's gone it's gone. 

I wanted to create this blog to share my thoughts and opinions on current environmental issues in the hope others will learn to help our planet and achieve a more sustainable lifestyle. I also felt this is the perfect way of sharing everything I learn at uni and apply my leaning to the real world. 

So join me, a passionate tree hugging student, towards my goal of a more sustainable lifestyle and I hope you leaning something while you're here.