Dutch student Boyan Slat is only 19 years old, but he already has 100 people working on his revolutionary plan to scoop thousands of tonnes of damaging plastics from the oceans.
The world’s “plastic soup,” much of it swirling around in five main gyres or rotating oceanic currents, costs billions of euros to the fishing and tourism sectors every year.
Estimates differ as to how much of the waste is in our oceans, ranging from half a million to millions of tonnes.
The scourge kills marine life, entering the food chain when sea creatures ingest it, as well as ensnaring dolphins and whales.
While most ideas for attacking the plastic plague involve boats criss-crossing the oceans to scoop up the waste, Slat came up with a remarkably practical way to help solve the problem: harnessing the power of sea currents to trap the “soup.”
“Why go after the plastic if the plastic can come to you?” the aeronautical engineering student told AFP.
His design calls for two vast floating arms, 50 km long each, in the form of a “V”, anchored to the ocean floor.
Curtains, ironically made from super-strong plastic, hang from the arms, dangling around three meters below the surface.
Ocean currents will force the waste into the “V” and to a cylindrical platform 11 meters in diameter floating at the end which can store up to 3,000 cubic meters of plastic (more than an Olympic swimming pool ) for eventual collection by a ship. A solar-powered conveyor belt will take the largest chunks of plastic to and from a shredder so that it will fit in the cylinder.
The blue-eyed, shaggy-haired Slat, who still lives at home with his parents, says he got his idea while scuba-diving in Greece. “I saw more plastics than fish under the water,” he recalled.
He publicly presented it for the first time at the end of 2012, hardly daring to dream it would become reality. Today, he has put his studies on hold and 100 people around the world are working for him, several of them full time.
Following a year of feasibility studies and a certain amount of criticism from a skeptical scientific community, Slat wants to set up a pilot project to run for the next three or four years before installing the first operational “Ocean Cleanup Array” in the north Pacific Ocean.
He has set up a crowdfunding Web site to collect US$2 million in 100 days. He reached the first million after 32 days.
Over a 10-year period, he hopes his invention will collect nearly half of the plastic swirling around in the north Pacific Ocean.
Slat claims his method would be thousands of times faster than sending ships to fish the plastic out of the water.
“It’s not only faster, it’s also cheaper,” he said.
Around 70 people, including oceanographers, engineers and legal advisers, took part in the feasibility study, looking at legal and material questions, as well as the project’s weather-resistance and cost.
“The ocean cleanup team has addressed concerns that the ocean community has voiced, but there are still issues that need to be addressed,” Kim Martini, an oceanographer at Washington State University in Seattle, told AFP by e-mail.
Some say the feasibility study underestimates the proportion of micro-plastics, which are just millimeters in size and extremely difficult to trap and remove.
Others say the project itself will become a dangerous obstacle for marine life and sea traffic.
“Boyan is a terrific engineer, and we appreciate a lot what he does for the plastic soup issue,” said Anna Cummins of the 5 Gyres environmental charity and lobby group in a telephone interview.
“But what we do not understand, is why he wants to use his device so far from the coastlines,” she told AFP.
“Collecting waste from the middle of the ocean is like collecting water from a tap that is always on,” said Daniel Poolen of the Plastic Soup Foundation.
“You have to go to river mouths, to the source” of the pollution, he said.
Slat insists that the feasibility study, which concluded that the project was “likely feasible,” dealt with all the technical problems.
Nevertheless, he is aware of the limitations.
“Thankfully, I’m surrounded by people who have more knowledge than me, they bring their experience on board,” Slat said, adding: “I’m only 19!”
“Even if I think that my project is more efficient and cheaper, I know it won’t remove all plastic waste,” he admits.
“And most importantly, I know full well that the source of plastic in the oceans won’t disappear tomorrow, people will unfortunately continue to put plastic waste into the environment.”
Rachid Hami didn’t think he’d have one more chance to bring his younger brother back to life. Especially in Taiwan, where Jallal, who died during an initiation ritual at France’s prestigious Saint-Cyr Military Academy, spent a brief part of his life as a National Taiwan University student. The Algerian-French director’s feature film For My Country, which is based on the tragedy, was partially shot in Taiwan and made its Asia premiere at the Golden Horse Film Festival last week. But through the new Taiwan Pitch initiative, he was able to further explore his brother’s journey by creating Aissa (Jallal’s fictional name),
Nov. 28 to Dec. 4 Samuel Noordhoff was in the final year of his medical residency when his colleague showed him a life-changing letter from a faraway land. Clarence Holleman, then-director of Taipei’s Mackay Memorial Hospital, was looking for a medical missionary to join him in Taiwan. Although Samuel and his wife Lucy were devout Christians, they never considered overseas mission work, writes Liang Yu-fang (梁玉芳) in Noordhoff’s 2000 biography. The family had been living frugally for years as Noordhoff completed his training, and was looking forward to a more comfortable life. Holleman was already
Surrounding Sun Moon Lake (日月潭) there are a multitude of activities suitable for all the family that can be enjoyed on a day or weekend trip. On a recent visit, I hiked to a peak, rode a ferry across its emerald waters and a visited a pagoda with outstanding views. Located in Nantou County’s Yuchi Township (魚池) at 748m above sea level, Sun Moon Lake it is an excellent destination in summer or winter with a year-round moderate temperature. The lake is the largest body of water in Taiwan with a circumference of 27 kilometers. The east side of the
After Taiwan became a Japanese colony in 1895 the government of Japan, always interested in proposals to increase its economic independence, began exploring the possibility of growing tropical drug plants on Taiwan. The leader in such experiments was Hoshi pharmaceuticals, founded in the second decade of the 20th century. In the 1920s and 1930s, Hoshi was a leader in cinchona cultivation in Taiwan, and of cocaine, then used as an anesthetic. TAIWAN’S COCAINE PRODUCTION Hoshi’s cocaine production grew quite large, and after better anesthetics were invented in the 1920s, Japan’s problem became disposing of all its production. Taiwan’s production was particularly useful. The