Plastic in oceans has emerged as a major environmental threat in recent years, as the scale of the problem has become clearer. Weve already seen bans on single-use plastic come into effect in some countries, but thats not the only initiative tackling this pollution. The science and tech communities have also been collaborating with governments and big business on innovative solutions to stop the eight million tonnes of plastic that is dumped into oceans every year. At current rates, its predicted that there will be ten times more plastic in our oceans by 2020, and more plastic than fish by 2050, meaning its never been more important to work towards a global fix. Here are some of the most promising tech inventions and initiatives addressing plastic in our oceans:
Seabin is an Australian invention from two surfers who saw first-hand the impact of ocean pollution. Its a floating rubbish bin (the clue’s in the name), which moves with the tide to collect garbage from the ocean’s surface. Water is sucked into the device, where debris is caught in a bag before pumping clean water back into the sea. The $5000 Seabin is aimed at marinas, docks, yacht clubs and commercial ports and already had 2500 pre-orders earlier this year. The bag can collect up to 20kg of rubbish at a time an average of 1kg per hour and runs on just $1 of power a day.
The Ocean Cleanup
Where Seabin focuses on enclosed ocean areas, The Ocean Cleanups technology aims to tackle a huge patch of accumulated plastic floating between Hawaii and California. The Great Pacific Garbage Patch is twice the size of Texas, with 1.8 trillion plastic pieces. The Ocean Cleanup is testing a 600-metre-long floating pipe, carried by wind, waves and currents with an aim to half the size of the garbage patch in five years. It essentially captures plastic in one place, allowing it to be easily collected every few months.
Its estimated that around 40 per cent of plastic manufactured is single-use packaging, making it one of the leading causes of ocean pollution. A solution that treats the source rather than the symptoms is edible packaging. Start-ups like Skipping Rocks Lab and Evoware are leading the charge in packaging made from seaweed, including water bottles. Of course, you dont actually have to eat the packaging, but the point is that it is plastic-free and biodegradable.
Smart Fishing Nets
Ocean pollution isnt solely down to our reliance on single-use plastics, so banning straws, for example, isnt a cure-all. The fishing industry is a major contributor, with equipment and nets killing trapped animals and adding to plastic piles. Innovations such as biodegradable fishing nets, smart nets that track their location through an app and high-tech trawl nets that make fishing more sustainable are all being tested and introduced around the world to cut down on discarded plastic within the industry.
New Plastics Economy
It’s important to mention that plastic remains an incredibly useful material, but steps can be taken to improve its production and subsequent disposal. Leading companies like HP and IKEA are increasingly committing to circular economy principles, which is another major step in solving the causes of plastic pollution, not just the symptoms. That includes closed-loop recycling, where a company uses the latest tech to collect waste from its products post-consumer and recycle it into new products. In Australia, companies like Close the Loop are helping businesses achieve sustainability goals including zero waste to landfill, by recovering and re-using resources, ultimately reducing the amount of plastic at risk of entering oceans. Globally, over 200 businesses have signed up to the New Plastics Economy Global Commitment to reduce waste, while other programs like NextWave and The Plastic Bank aim to intercept plastic before it has a chance to reach the ocean, by empowering local communities to join the fight.
Gizmodo, 28 November 2018 ;