Showing posts with label Environmental science. Show all posts
Showing posts with label Environmental science. Show all posts

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 -

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.

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

Sunday, 22 April 2018

The Cost of Biofuels

With growing greenhouse gas emission being linked to oil consumption, it's no surprise that we as a population are keen to find a more sustainable alternative, the main opinion being that bio-fuel is most likely the best option. With global bio-fuel production growing 137 billion L in 2016, with this figure projected to rise, we really need to ask the question of this is the most sustainable alternative.

Image result for biofuels

So what are bio-fuels?
Bio-fuels are fuels created from organic matter (i.e. biomass and bio-waste) as an alternative to crude oil products with the most common forms being bio-diesel and ethanol. With bio fuels being widely used in developing countries it makes up 10% of global energy consumption and Brazil tops global production with 19.2 million L being produced in 2007. So fuel made from plants, sounds sustainable right? In my opinion this couldn't be further from the truth.

The first issue that should be raised is land use. In the US, annual oil usage is 134 billion gallons and in order to meet this demand 168 million acres of sugarcane would be needed. To me, this seems near impossible to achieve and the complete opposite of sustainable, especially when you factor in the rate the population is growing. With a growing population (that we are currently struggling to feed), shouldn't the land be used to grow food? The lack of agricultural land will result in an increase in food imports, increasing the food miles per person. Won't this just increase fossil fuel use from aircraft and container ships?

Say hypothetically we manage to overcome the fuel over food issue, the loss of biodiversity will be huge. Mass deforestation will have to occur to meet demand, putting already threatened species at risk. With Brazil being the leader in bio-fuel production, would this put even more pressure on the
already shrinking Amazon rain forest considering soy is used for bio-diesel? The Cerrado region has 8-9 million hectares of sugarcane plantation (used for ethanol fuel) which is a main cause for the ecosystem declining by 60%. With WWF claiming up to 10,000 species a year are going extinct, a growing bio-fuel industry would only increase this number as there would be a greater demand for this? Combine this with the growing demand for food and this figure rises even higher. Although I feel ethically we should conserve these areas, humans also benefit from biodiversity both economically and in terms of well-being. We gain food, water, fertile soil and some medicines from natural ecosystems, most of which are highest in ecosystems with the richest biodiversity. These can be sold and exported (e.g. tropical fruit, coffee) increasing income and security for individuals. Biodiversity also has cultural significance and have been linked to better mental health and social relations. Seeing as we gain so much from the natural ecosystems already present, should we not be looking at other alternatives for fuel?

The main benefit to bio-fuels is they are green and cut carbon emission right? Wrong. Yes, I am aware the plants used will act as a carbon sink so it could be argued that the bio-fuels themselves do not produce any additional greenhouse gases. However we need to take into consideration the secondary greenhouse gases produced as a by product of production. The majority of deforestation occurs as a result of 'slash and burn' methods will release a huge quantity of carbon dioxide, carbon monoxide, nitrous oxide and methane (which is more polluting that CO2). There will also be an increase in demand for fertilisers, increasing NO2 levels and ,considering NO2 has a global warming potential around 300 times greater than CO2, this will only amplify the enhanced greenhouse effect. There is also the added cost of fuel from machinery for planting and harvesting as well as the emissions from the production/conversion process which will have to be done on an industrial scale. With all of these considered, it really does question how green bio-fuels really are.

Image result for biofuels

My opinion is that there are other renewable energy sources available that could be developed that are more sustainable. Although I am all for phasing out petrol and diesel, I don't feel that the way to doe this is with biofuels.

Resources -

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.