Quantcast
Environmental News for a Healthier Planet and Life

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

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

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.

Recycling and general waste plastic wheelie bins awaiting collection for disposal in Newport, Rhode Island. Tim Graham / Getty Images

Reduce. Reuse. Recycle. According to The National Museum of American History, this popular slogan, with its iconic three arrows forming a triangle, embodied a national call to action to save the environment in the 1970s. In that same decade, the first Earth Day happened, the EPA was formed and Congress passed the Resource Conservation and Recovery Act, encouraging recycling and conservation of resources, Enviro Inc. reported.

Read More Show Less
EcoWatch Daily Newsletter
The coal-fired Huaneng Power Plant in Huai 'an City, Jiangsu Province, China on Sept. 13, 2020. Costfoto / Barcroft Media via Getty Images

One of the silver linings of the coronavirus pandemic was the record drop in greenhouse gas emissions following national lockdowns. But that drop is set to all but reverse as economies begin to recover, the International Energy Agency (IEA) warned Tuesday.

Read More Show Less
Trending
A grizzly bear killed an outdoor guide in a rare attack near Yellowstone Park. William Campbell / Corbis / Getty Images

A backcountry guide has died after being mauled by a grizzly bear near Yellowstone National Park.

Read More Show Less
Representative Alexandria Ocasio-Cortez (D-NY) re-introduces the Green New Deal in Washington, D.C. on April 20, 2021. Mandel Ngan / AFP / Getty Images

By Brett Wilkins

In the latest of a flurry of proposed Green New Deal legislation, Reps. Cori Bush and Alexandria Ocasio-Cortez on Monday introduced the Green New Deal for Cities Act of 2021, a $1 trillion plan to "tackle the environmental injustices that are making us and our children sick, costing us our homes, and destroying our planet."

Read More Show Less
Offshore oil and gas drillers have left more than 18,000 miles of pipelines at the bottom of the Gulf of Mexico. Drew Angerer / Getty Images

Offshore oil and gas drillers have discarded and abandoned more than 18,000 miles of pipelines on the floor of the Gulf of Mexico since the 1960s, a report from the Government Accountability Office says.

Read More Show Less