Tag Archives: plastics

Earth Day: 10 Tips for Living more Sustainably at University

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In honour of Earth Day, Marine Biology Student, Demi has compiled her top 10 tips for living a more sustainable student life.

1. Walk as much as you can

A pretty simple one to start with, especially at Newcastle university! With the uni and accommodation within walking distance of each other and the city centre, make it part of your daily life to walk to the places you need to be. Not only is it good for your health (getting those steps in!) but less Uber trips are also good for the environment and your bank!

2. Take your own bags shopping

Invest in a couple of bags for life and remind yourself. Get your flatmates to remind you to take them with you every time you do a big shop so that you can stop using plastic bags at the checkout! Single use plastics are a huge issue for the environment and only 1/200 are estimated to actually get recycled.

3. Reusable bottle

Stop buying bottled water! The average person uses 150 plastic bottles per year, all of which can be avoided altogether by buying a reusable bottle that you can refill. Many people find drinking from a reusable bottle also makes them drink more water; so there are health benefits as well as environment ones!

4. Meal planning

Sounds boring but it can actually be really effective! Before you need to shop write out a plan of what you want to eat for breakfast, lunch and dinner for the week. Not only will you save money by only buying what you need, but you’ll also save food from being wasted and going to create CO2 in landfills.

5. Bulk buying

Again bulk buying can save you some money in the long run as food is usually cheaper when you buy more, but by buying in bulk, you also get less pointless packaging therefore less rubbish going into landfill (or potentially the ocean). Win-win!

6. Put your leftovers in a soup

There are plenty of easy recipes online to help you turn almost any leftovers that you do get into a soup. Again less wasted food and an extra meal for you, another win-win!

7. Reduce washing clothes

Be more energy efficient when washing your clothes; only do a wash when you have a full load, wear clothes such as jeans and jumpers more than once before washing. Laundry has a bigger effect on the planet than you might think. According to the United Nations environment programme you can use 5 times less energy by wearing your jeans at least 3 times before washing and skipping the dryer!

8. Borrow instead of buy

Whether it be books you can borrow from the library or fancy-dress outfits you can borrow from friends; buying less = less waste in the long run because let’s be honest, how often are you going to wear that 70s disco outfit?

9. Metal straws

Single-use plastic straws are contributing massively to landfill and ocean pollution problems. The easiest way to solve this problem is to stop using them, or to switch to metal straws. They are cheap, easy to clean and you can keep one in your bag whenever you go out, so you’ll never have to use a plastic straw again.

10. Shampoo/conditioner bars

Many shops offer sustainably made shampoo/conditioner bars, many of which are natural and better for your hair than regular ones which typically contain lots of chemicals, but most importantly they come without the plastic bottles!

Humanity’s Footprint on Our Blue Planet

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This series of Blue Planet has enabled us to see so much of the ocean that we are normally unaware of; we’ve been able to truly appreciate the magnificence of the seas all the way from the deepest trenches to the rocky coasts. But for many, with this appreciation has come the realisation of the devastating impact of human activity on our planet’s marine life.

Marine researchers at Newcastle University have been working to assess the extent of human impact on the ocean, looking at everything from chemical and plastic pollution to CO2 levels and increasing sea temperatures.

Chemical pollution

A research team led by Newcastle University’s Dr Alan Jamieson, used deep sea landers to reach the bottom of the Pacific Ocean’s Mariana and Kermadec trenches, to bring up samples of the organisms that live there.

The fatty tissue of the amphipods they sampled contained extremely high levels of Persistent Organic Pollutants – or POPs – including polychlorinated biphenyls (PCBs), which were banned in the 1970’s. Such pollutants are invulnerable to environmental degradation and will remain in the environment for decades.

Dr Jamieson believes these pollutants will have found their way to the depths of the trenches through contaminated debris and dead animals sinking to the bottom of the ocean, which then work their way up through the food chain.

Find out more.

 Sending the deep sea landers down to the ocean floor.

Man’s plastic footprint

Following on from this study which revealed shocking levels of chemicals in the deep, Dr Jamieson began to investigate whether plastics had also polluted to the same extent.

Using the deep sea landers to bring samples to the surface, the research team examined 90 individual animals and found ingestion of plastic ranged from 50% in the New Hebrides Trench to 100% at the bottom of the Mariana Trench.

Dr Jamieson explained that this type of work requires a great deal of contamination control, but that the results were undeniable, with instances where synthetic fibres could actually be seen in the stomach contents of the specimen as they were being removed.

“The fact that we found such extraordinary levels of these pollutants in one of the most remote and inaccessible habitats on earth really brings home the long term, devastating impact that mankind is having on the planet,” says Dr Jamieson.
“It’s not a great legacy that we’re leaving behind.”

Find out more. 

The ocean and emissions 

Pollutants such as plastic and chemicals are not the only issues our seas face; the oceans also absorb a large amount of heat and CO2 from human emissions. Of the emissions absorbed by the global ocean, the Southern Ocean takes a staggering 75% of the heat and 50% of the CO2.

A team from Newcastle University, comprised of Dr Miguel Morales Maqueda, Alethea Mountford and Liam Rogerson, are in the Antarctic as part of the ORCHESTRA research project (Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports).

Explaining the involvement in the project, Dr Maqueda said: “We have been invited to participate in ORCHESTRA on account of our expertise in the use of surface robotic systems to carry out sea surface measurements.

We use a Wave Glider, which is an unmanned vehicle, to conduct surveys of the ocean surface, measuring properties such as near-surface meteorology (wind, air pressure and air temperature), waves, ocean temperature and currents. The Wave Glider relays this information back to base via satellite.”

The aim is to use these oceanography surveys to gain a better understanding of the mechanisms that lead to the transfer of heat and greenhouse gases from the atmosphere into the ocean and how they are subsequently distributed globally.


Research vessel RRS James Clark Ross, where the team will be based. 

Find out more. 

Hope moving forward

Humans are undoubtedly having an increasingly negative impact on the ocean. When faced with this fact it becomes all too easy to lose hope, but pioneering research such as that from Newcastle University works to highlight the serious issues at hand and as such people are becoming more aware of how everyday actions can have wider consequences for the environment.

We need only take a look at the solutions that Newcastle researchers have developed for the disastrous episodes of coral bleaching around the globe to illustrate that advancements in ideas and technology are being made all the time to work to reduce and reverse negative human impact.

If you feel inspired to make a difference to the marine world, take a look at the courses offered at Newcastle University in Marine Science and Marine Technology.

 

#TryThisTuesday: Making Plastic from Milk and Vinegar

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plastic

Yes – you really can make plastic from just milk and vinegar!

First of all just measure out 120ml of milk (it can be any type, we used semi-skimmed). Either heat your milk in your microwave or in a pan on the hob. It needs to get to around 50 degrees C so 1 or 2 minutes in the microwave should do it.

Next add 2 tablespoons of white distilled vinegar to the hot milk and stir – you should see clumps start to form.

Sieve the mixture to remove the excess liquid. Remove even more liquid with a paper towel or piece of kitchen roll.

You should be left with a clump of plastic which you can mould and shape as you please. It should begin to set in an hour.

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The Science

Plastics are polymers meaning they are made up of long chains of repeated molecules (called monomers). The monomer that we have used is called casein and is found in the milk. When the milk is heated the casein molecules unfold. Adding the vinegar causes them to reorganise into a long chain polymer – making it a plastic.

It might look quite different to the plastics you’re used to today but up until the end of World War II in 1945, casein plastics were commonly found.