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Solar-Powered Vacuum Could Suck Up 24,000 Tons of Ocean Plastic Every Year
With more plastic than fish expected in our oceans by 2050, cleaning up this mess seems like an impossible task. But a team of inventors from Sussex, England have developed a novel solution. The SeaVax is a solar- and wind-powered ship that can suck up plastic waste.
The inventors at Bluebird Marine Systems LTD unveiled their proof of concept at the government-funded Innovate UK show in London in November. The inventors are entering prototype phase, the Express reported.
The ship purportedly works by funneling plastic waste as it moves forward. According to this mockup posted to the Innovate UK website, once built, the vessel will be around 144 feet long and fully autonomous. Deck-mounted solar panels and two wind turbines will feed power to electric pumps and filters that can suck up plastic solids and micro plastics. An onboard shredder rips and breaks up larger pieces of debris.
The builders calculated on their website that the finished robovac will be able to generate enough energy to treat an average of 89.9 million liters of seawater in a year, translating to 22,400,000 kilograms of plastic from a body of water that has high concentrations of surface solid plastic, such as river estuaries.
"Working in a fleet, these autonomous robotic boats could keep plastic buildup contained and significantly reduce the existing ocean gyres in around 5-10 years, cost effectively," the inventors said.
The captured plastic is temporarily stored in a cargo hold that can carry around 150 tons of weight until it can be off-loaded or recycled, the inventors said.
"With our system all sizes of rubbish, from huge fishing nets to deadly micro particles, can be swept or sucked up, ground down and stored in SeaVax's tanks," project director Chris Close explained to the Express.
The project has reportedly cost £138,000 (roughly $198,000) and a year to develop.
There are various ocean cleanup projects already underway, but Dr. Marcus Eriksen, research director at 5 Gyres Institute, explained to EcoWatch that many of the open ocean techno-fixes have died down in the last five years.
It's "mostly because the science of plastic pollution tells us plastics fragment quickly, are mostly small particles widely distributed across the globe and are highly toxic after time at sea—more akin to a smog of plastic rather than a consolidated patch," he said. "Recovery is much more challenging than we thought, and the ocean is rapidly beaching it and sinking the smallest particles."
Dr. Eriksen also pointed out that by-catch and the unintended killing of passively floating organisms that can't swim away is a big issue around any cleanup contraption.
Another issue, he said, is the "PR challenge of not letting post-consumer cleanup distract the attention of the public and policymakers from circular economy thinking, like upstream design innovations and policy intervention that prevent the problem in the first place."
For what it's worth, Bluebird Marine Systems said their finished SeaVax will feature automatic shutdown in case marine life is detected, as well as an SOS beacon to alert rescue workers of any marine life-threatening situations.
The company also said on their website, "We agree with most others, that we must begin to look closer to home, to try to prevent our rivers from feeding the oceans in the first place—and we should use less plastic for packaging."
Open-ocean clean up devices are better for capturing persistent plastic products like fishing gear that's designed to last years or decades, Dr. Eriksen noted.
"Catching that before it fragments into microplastic is worthy," he said. "The biggest advantage to these clean-up contraptions is deployment upstream. That's where the waste really is the worst. You'll get your biggest bang for your buck, and you will save our seas from the greatest source of contamination. The further upstream you go, the more success you will have."
According to the Express, Bluebird Marine Systems has already received interest from people in India trying to develop a clean-up solution for the polluted Ganges river. There was also interest from Nigeria and Australia who might want to use the device for oil cleanup.
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Extreme weather events supercharged by climate change in 2012 led to nearly 1,000 more deaths, more than 20,000 additional hospitalizations, and cost the U.S. healthcare system $10 billion, a new report finds.
A Bay Area conservation group struck a deal to buy and to protect the world's largest remaining privately owned sequoia forest for $15.6 million. Now it needs to raise the money, according to CNN.
The Rugby World Cup starts Friday in Japan where Pacific Island teams from Samoa, Fiji and Tonga will face off against teams from industrialized nations. However, a new report from a UK-based NGO says that when the teams gather for the opening ceremony on Friday night and listen to the theme song "World In Union," the hypocrisy of climate injustice will take center stage.
By Wudan Yan
In June, New York Times journalist Andy Newman wrote an article titled, "If seeing the world helps ruin it, should we stay home?" In it, he raised the question of whether or not travel by plane, boat, or car—all of which contribute to climate change, rising sea levels, and melting glaciers—might pose a moral challenge to the responsibility that each of us has to not exacerbate the already catastrophic consequences of climate change. The premise of Newman's piece rests on his assertion that traveling "somewhere far away… is the biggest single action a private citizen can take to worsen climate change."
On Monday, Sept. 23, the Climate Group will kick off its 11th annual Climate Week NYC, a chance for governments, non-profits, businesses, communities and individuals to share possible solutions to the climate crisis while world leaders gather in the city for the UN Climate Action Summit.
By Pam Radtke Russell in New Orleans
Local TV weather forecasters have become foot soldiers in the war against climate misinformation. Over the past decade, a growing number of meteorologists and weathercasters have begun addressing the climate crisis either as part of their weather forecasts, or in separate, independent news reports to help their viewers understand what is happening and why it is important.