Quantcast

World's First Aerial Survey of Great Pacific Garbage Patch: 'It's Worse Than We Thought'

Popular

Boyan Slat, the 22-year-old Dutch inventor and CEO behind The Ocean Cleanup, announced today preliminary results of the organization's latest major research mission, the Aerial Expedition, the first-ever aerial survey of an ocean garbage patch.

Boyan Slat next to Ocean Force One, which will help accurately quantify the ocean's biggest and most harmful debris—discarded fishing gear called ghost nets.The Ocean Cleanup

"One of the things that we are already able to share is right at the edge of [the Great Pacific Garbage Patch], we came across more objects than we were expecting to find in the center of the garbage patch," Slat said at a press conference at Moffett Airfield in Mountain View, California.

"During a period of just two and a half hours, our crew observed more than a thousand large objects of plastic floating underneath this aircraft," he continued. "Although we still need to get a detailed analysis of the results, it's really quite safe to say that it's worse than we thought. Again, this underlines the urgency of why we need to clean it up and that we really need to take care of the plastic that's already out there in the ocean."

The Ocean Cleanup's Aerial Expedition aims to accurately measure a particularly large and harmful type of marine debris known as ghost nets. The Ocean Cleanup crew determined that quantifying such objects will help resolve the "last piece of our puzzle" following last year's Mega Expedition, a 30-day reconnaissance mission that produced the first high-resolution map of the Great Pacific Garbage Patch, but came short in determining just how much plastic was in the ocean, especially larger items.

Items the crew spotted from yesterday's first test flight included ghost nets, discarded fishing gear, buoys, crates and other unidentifiable objects. The Ocean Cleanup

"We discovered that the conventional method of measuring ocean plastic, using nets of less than a meter (3 ft) wide, was inaccurate because it seriously underestimated the total amount of plastic. The reason for this is simple: the larger the objects, the rarer they are by count," the Ocean Cleanup team said.

So, instead of using boats to count ocean plastic, the team turned to planes. To conduct their aerial survey, a C130 Hercules aircraft was fitted with state-of-art sensors from Teledyne Optech, whose Coastal Zone Mapping and Imaging Lidar (CZMIL) can detect objects at oceanic depths of tens of meters. This technology can also provide researchers with a weight estimate by registering the size of the found objects.

The aircraft, dubbed Ocean Force One, is scheduled to make several flights from Sept. 26 to Oct. 7. These low-speed, low-altitude flights will inspect an estimated 6,000 square kilometers of the ocean, more than 300 times the area explored at the Mega Expedition.

Yesterday, mission crew completed the first of two test flights above Moffett Airfield to calibrate the aircraft's ocean plastic sensors and familiarize themselves with the survey protocol. The aircraft flew along the Northern boundary of the Great Pacific Garbage Patch, the plastic accumulation zone between Hawaii and California.

The Aerial Expedition's findings will be combined with the data collected on the Mega Expedition, resulting in a study expected to be published in early 2017.

In the video below, Slat gives a tour of the aircraft and the concept behind the mission:

"In order to solve the plastic pollution problem, it is essential to understand its dimensions," Julia Reisser, oceanographer and expedition leader, wrote in a blog post. "Knowing how much and what kind of plastic has accumulated in the ocean garbage patches is especially important. This determines the design of cleanup systems, the logistics of hauling plastic back to shore, the methods for recycling plastic and the costs of the cleanup."

Following the test flights, a team of 10 researchers, three sensor technicians and seven navigation personnel will participate on two long flights flying at a low airspeed of 140 knots and an altitude of 400 meters as it maps the garbage patch, according to Reisser.

"Four experienced observers will scour the ocean surface from the aircraft's open paratroop doors, while two computer operators log the data," Reisser wrote. "The pilots and navigator will also search for ocean plastic from their seats in the cockpit, where another computer operator will log their sightings."

"The carbon emissions generated by the aircraft will be offset through clean energy compensation," the team pointed out.

The visual survey is the final major research mission before the actual start of Slat's ambitious ocean cleanup effort. "This is really the last reconnaissance step before we start the real cleanup," he said at today's press conference.

At the young age of 17, the aerospace engineering student made headlines and inspired people around the world after coming up with a plastic-capturing concept that involves a massive static platform and long floating barriers that passively corrals plastics with wind and ocean currents.

The Ocean Cleanup, headquartered in Delft, The Netherlands now employs approximately 50 engineers and researchers.

In June, the Ocean Cleanup deployed a 100-meter clean-up boom, nicknamed Boomy McBoomface, in the North Sea in The Netherlands.

Inspecting the prototype in August.The Ocean Cleanup Facebook

The organization said that the next milestone for The Ocean Cleanup after the Aerial Expedition will be its Pacific Pilot, which is scheduled for launch in the second half of 2017.

The Ocean Cleanup's mission is to rid the world's oceans of plastic, a scourge that severely pollutes and damages ocean ecosystems and economies. About 8 million tons of plastic enters the oceans each year.

At today's press conference, Slat warned that large pieces of plastic can "crumble down into those small microplastics ... and that has a tremendous environmental impact if it ends up in the food chain." He also noted that ghost nets can be harmful because they can cause entanglements of aquatic life as well as ship propellors.

Full deployment of the Ocean Cleanup system is scheduled for 2020.

EcoWatch Daily Newsletter

With well over a billion cars worldwide, electric vehicles are still only a small percentage. An economist from the University of Michigan Energy Institute says that is likely to change. Maskot / Getty Images

In 2018, there were about 5 million electric cars on the road globally. It sounds like a large number, but with well over a billion cars worldwide, electric vehicles are still only a small percentage.

Read More
Nestlé is accelerating its efforts to bring functional, safe and environmentally friendly packaging solutions to the market and to address the global challenge of plastic packaging waste. Nestlé / Flickr / CC BY-NC-ND 2.0

Nestlé, the world's largest food company, said it will invest up to $2 billion to address the plastic waste crisis that it is largely responsible for.

Read More
Sponsored
Determining the effects of media on people's lives requires knowledge of what people are actually seeing and doing on those screens. Vertigo3d / iStock / Getty Images Plus

By Byron Reeves, Nilam Ram and Thomas N. Robinson

There's a lot of talk about digital media. Increasing screen time has created worries about media's impacts on democracy, addiction, depression, relationships, learning, health, privacy and much more. The effects are frequently assumed to be huge, even apocalyptic.

Read More
Indigenous people of various ethnic groups protest calling for demarcation of lands during the closing of the 'Red January - Indigenous Blood', in Paulista Avenue, in São Paulo, Brazil, Jan. 31, 2019. Cris Faga / NurPhoto / Getty Images

By Raphael Tsavkko Garcia

Rarely has something so precious fallen into such unsafe hands. Since Jair Bolsonaro took the Brazilian presidency in 2019, the Amazon, which makes up 10 percent of our planet's biodiversity and absorbs an estimated 5 percent of global carbon emissions, has been hit with a record number of fires and unprecedented deforestation.

Read More
Microsoft's main campus in Redmond, Washington on May 12, 2017. GLENN CHAPMAN / AFP via Getty Images

Microsoft announced ambitious new plans to become carbon negative by 2030 and then go one step further and remove by 2050 all the carbon it has emitted since the company was founded in 1975, according to a company press release.

Read More