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Old October 19th, 2014 #82
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Post White Spirit: The Dutch boy mopping up a sea of plastic - Whites are the only race who care about making the world better/cleaner


Boyan Slat is a 20-year-old on a mission - to rid the world's oceans of floating plastic. He has dedicated his teenage years to finding a way of collecting it. But can the system really work - and is there any point when so much new plastic waste is still flowing into the sea every day?

"I don't understand why 'obsessive' has a negative connotation, I'm an obsessive and I like it," says Boyan Slat. "I get an idea and I stick to it."

This idea came to him at the age of 16, in the summer of 2011, when diving in Greece. "I saw more plastic bags than fish," says Slat. He was shocked, and even more shocked that there was no apparent solution. "Everyone said to me: 'Oh there's nothing you can do about plastic once it gets into the oceans,' and I wondered whether that was true."

Over the last 30 to 40 years, millions of tonnes of plastic have entered the oceans. Global production of plastic now stands at 288 million tonnes per year, of which 10% ends up in the ocean in time. Most of that - 80% - comes from land-based sources. Litter gets swept into drains, and ends up in rivers - so that plastic straw or cup lid you dropped, the cigarette butt you threw on the road… they could all end up in the sea.

The plastic is carried by currents and congregates in five revolving water systems, called gyres, in the major oceans, the most infamous being the huge Pacific Garbage Patch, half way between Hawaii and California.

Although the concentration of plastic in these areas is high - it's sometimes described as a plastic soup - it's still spread out over an area twice the size of Texas. What's more, the plastic does not stay in one spot, it rotates. These factors make a clean-up incredibly challenging.

"Most people have this image of an island of trash that you can almost walk on, but that's not what it's like," says Slat. "It stretches for millions of square kilometres - if you went there to try and clean up by ship it would take thousands of years." Not only that, it would be very costly in terms of both money and energy, and fish would be accidentally caught in the nets.

Slat had always enjoyed working out solutions to puzzles, and while pondering this one, it came to him - rather than chase plastic, why not harness the currents and wait for it to come to you?

At school, Slat developed his idea further as part of a science project. An array of floating barriers, anchored to the sea bed, would first catch and concentrate the floating debris. The plastic would move along the barriers towards a platform, where it could then be efficiently extracted. The ocean current would pass underneath the barriers, taking all buoyant sea life with it. There would be no emissions, and no nets for marine life to get entangled in. The collected ocean plastic would be recycled and made into products - or oil.

Computer animation of Boyan Slat's plastic catching system

The high school science project was awarded Best Technical Design at Delft University of Technology. For most teenagers, it would probably have ended there, but Slat was different. He had been interested in engineering from a very young age. "First I built tree houses, then zip-wires, then it evolved towards bigger things," he says. "By the time I was 13, I was very interested in rocketry." This led him to set a Guinness World Record for the most water rockets launched at the same time: 213, from a sports field in his native Delft. "The experience taught me how to get people crazy enough to do things you want, and how to approach sponsors." Useful skills, as it turned out.

When Slat began studying aerospace engineering at Delft University, the idea of cleaning up the oceans just wouldn't let him go - he says it niggled at him like "an asymmetrically positioned label" on a pair of boxer shorts. He set up a foundation, The Ocean Cleanup, and explained his concept in a TedX Talk: How the Oceans can Clean Themselves. Then, six months into his course, he made the decision to pause both university and social life to try make it a reality.

His entire budget consisted of 200 euros (£160) of saved-up pocket money, so he spent a few desolate months trying to get sponsorship. "It was so disheartening, because no-one was interested," he says. "I remember one day contacting 300 companies for sponsorship - only one replied, and that, too, resulted in a dead end."

But then something happened. On 26 March 2013, months after it had gone online, Slat's TedX talk went viral. "It was unbelievable," he says. "Suddenly we got hundreds of thousands of people clicking on our site every day. I received about 1,500 emails per day in my personal mailbox from people volunteering to help." He set up a crowd-funding platform that made $80,000 in 15 days.

Slat still doesn't know what made his idea take off like that, but he describes it as a great relief. "A year ago I wasn't sure it would succeed," he says. "But considering the size of the problem it was important to at least try."

The amount of plastic being discarded into the marine environment is such that we could eventually see an ocean where the amount of plastics is roughly one third the total biomass of fish - 1lb of plastic for every 2lbs of fish, according to Nicholas Mallos from Ocean Conservancy, which organises coastal clean-ups.

According to the UN Environment Programme there are on average 13,000 pieces of floating plastic per square kilometre of ocean - but that goes up to millions of pieces in the gyres. Many of these particles end up being accidentally ingested by marine animals, which can die of starvation because of the plastic filling their stomachs.

A decayed albatross carcass shows the amount of plastic it had ingested

Albatrosses are particularly vulnerable because they feed on the eggs of flying fish, which are attached to floating objects - now most likely a piece of plastic. Dr Jan Andries van Franeker from the Institute for Marine Resources an

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read full article at source: http://www.bbc.com/news/magazine-29631332