Great Pacific Garbage Patch - National Geographic Society. The Great Pacific Garbage Patch, also known as the Pacific trash vortex, spans waters from the West Coast of North America to Japan. The patch is actually comprised of the Western Garbage Patch, located near Japan, and the Eastern Garbage Patch, located between the U. S. These areas of spinning debris are linked together by the North Pacific Subtropical Convergence Zone, located a few hundred kilometers north of Hawaii. This convergence zone is where warm water from the South Pacific meets up with cooler water from the Arctic. The zone acts like a highway that moves debris from one patch to another. The entire Great Pacific Garbage Patch is bounded by the North Pacific Subtropical Gyre. An ocean gyre is a system of circular ocean currents formed by the Earth’s wind patterns and the forces created by the rotation of the planet. The North Pacific Subtropical Gyre is created by the interaction of the California, North Equatorial, Kuroshiro, and North Pacific currents. These four currents move in a clockwise direction around an area of 2. The area in the center of a gyre tends to be very calm and stable. Francisco with data from the Great Pacific Garbage Patch. What is the Great Pacific Garbage Patch? A garbage patch is made up of tiny plastic pieces. Plastic Ocean - The Great Pacific. Oceanographers like Curtis Ebbesmeyer, the world's leading flotsam expert, refer to it as the great Pacific Garbage Patch. The circular motion of the gyre draws debris into this stable center, where it becomes trapped. A plastic water bottle discarded off the coast of California, for instance, takes the California Current south toward Mexico. There, it may catch the North Equatorial Current, which crosses the vast Pacific. Near the coast of Japan, the bottle may travel north on the powerful Kuroshiro Current. Finally, the bottle travels westward on the North Pacific Current. The gently rolling vortexes of the Eastern and Western Garbage Patches gradually draw in the bottle. The amount of debris in the Great Pacific Garbage Patch accumulates because much of it is not biodegradable. Many plastics, for instance, do not wear down; they simply break into tinier and tinier pieces. In reality, these patches are almost entirely made up of tiny bits of plastic, called microplastics. Microplastics can’t always be seen by the naked eye. Even satellite imagery doesn’t show a giant patch of garbage. The microplastics of the Great Pacific Garbage Patch can simply make the water look like a cloudy soup. This soup is intermixed with larger items, such as fishing gear and shoes. The seafloor beneath the Great Pacific Garbage Patch may also be an underwater trash heap. Oceanographers and ecologists recently discovered that about 7. While oceanographers and climatologists predicted the existence of the Great Pacific Garbage Patch, it was a racing boat captain by the name of Charles Moore who actually discovered the trash vortex. Moore was sailing from Hawaii to California after competing in a yachting race. Crossing the North Pacific Subtropical Gyre, Moore and his crew noticed millions of pieces of plastic surrounding his ship. Marine Debris No one knows how much debris makes up the Great Pacific Garbage Patch. The North Pacific Subtropical Gyre is too large for scientists to trawl. In addition, not all trash floats on the surface. What is the Great Pacific Garbage Patch? They exist all throughout the ocean, and the Pacific Garbage Patch. A garbage patch is made up of tiny plastic. Eighty percent of marine debris is plastic. Marine litter is even found on the floor of the Arctic ocean. Great Pacific Garbage Patch. While it's true that these areas have a higher concentration of plastic than other parts of the ocean. What is known as the Great Pacific Garbage Patch is. The Great Pacific Garbage Patch. Plastic debris releases chemical additives and plasticizers into the ocean. Plastic also adsorbs hydrophobic pollutants like. The Great Pacific Garbage Patch. Like HowStuffWorks on. EVERY single piece of plastic that has ever been created since the. And yet its become ground zero for The Great Pacific Garbage Patch. To clean up ocean plastics focus on coasts, not the Great Pacific garbage patch Date. Denser debris can sink centimeters or even several meters beneath the surface, making the vortex’s area nearly impossible to measure. About 8. 0% of the debris in the Great Pacific Garbage Patch comes from land- based activities in North America and Asia. Trash from the coast of North America takes about six years to reach the Great Pacific Garbage Patch, while trash from Japan and other Asian countries takes about a year. The remaining 2. 0% of debris in the Great Pacific Garbage Patch comes from boaters, offshoreoil rigs, and large cargo ships that dump or lose debris directly into the water. The majority of this debris—about 7. More unusual items, such as computer monitors and LEGOs, come from dropped shipping containers. While many different types of trash enter the ocean, plastics make up the majority of marine debris for two reasons. First, plastic’s durability, low cost, and malleability mean that it’s being used in more and more consumer and industrial products. Second, plastic goods do not biodegrade but instead break down into smaller pieces. In the ocean, the sun breaks down these plastics into tinier and tinier pieces, a process known as photodegradation. Scientists have collected up to 7. Great Pacific Garbage Patch—that’s about 1. Most of this debris comes from plastic bags, bottle caps, plastic water bottles, and Styrofoam cups. Marine debris can be very harmful to marine life in the gyre. For instance, loggerhead sea turtles often mistake plastic bags for jellies, their favorite food. Albatrosses mistake plastic resinpellets for fish eggs and feed them to chicks, which die of starvation or ruptured organs. Seals and other marine mammals are especially at risk. They can get entangled in abandoned plastic fishing nets, which are being discarded more often because of their low cost. Seals and other mammals often drown in these forgotten nets—a phenomenon known as “ghost fishing.”Marine debris can also disturb marine food webs in the North Pacific Subtropical Gyre. As microplastics and other trash collect on or near the surface of the ocean, they block sunlight from reaching plankton and algae below. Algae and plankton are the most common autotrophs, or producers, in the marine food web. Autotrophs are organisms that can produce their own nutrients from oxygen, carbon, and sunlight. Animals that feed on algae and plankton, such as fish and turtles, will have less food. If populations of those animals decrease, there will be less food for apex predators such as tuna, sharks, and whales. Eventually, seafood becomes less available and more expensive for people. These dangers are compounded by the fact that plastics both leach out and absorb harmful pollutants. As plastics break down through photodegradation, they leach out colorants and chemicals, such as bisphenol A (BPA), that have been linked to environmental and health problems. Conversely, plastics can also absorb pollutants, such as PCBs, from the seawater. These chemicals can then enter the food chain when consumed by marine life. Patching Up the Patch Because the Great Pacific Garbage Patch is so far from any country’s coastline, no nation will take responsibility or provide the funding to clean it up. Charles Moore, the man who discovered the vortex, says cleaning up the garbage patch would “bankrupt any country” that tried it. Cleaning up marine debris is not as easy as it sounds. Many microplastics are the same size as small sea animals, so nets designed to scoop up trash would catch these creatures as well. Even if we could design nets that would just catch garbage, the size of the oceans makes this job far too time- consuming to consider. The National Ocean and Atmospheric Administration’s Marine Debris Program has estimated that it would take 6. North Pacific Ocean. Many expeditions have traveled through the Great Pacific Garbage Patch. Charles Moore, who discovered the patch in 1. Algalita Marine Research Foundation. During a 2. 01. 4 expedition, Moore and his team used aerialdrones, to assess from above the extent of the trash below. The drones determined that there is 1. The team also discovered more permanent plastic features, or islands, some over 1. All the floating plastic in the Great Pacific Garbage Patch inspired National Geographic Emerging Explorer David de Rothschild and his team at Adventure Ecology to create a large catamaran made of plastic bottles: the Plastiki. The sturdiness of the Plastiki displayed the strength and durability of plastics, the creative ways that they can be repurposed, and the threat they pose to the environment when they don’t decompose. In 2. 01. 0, the crew successfully navigated the Plastiki from San Francisco, California, to Sydney, Australia. Scientists and explorers agree that limiting or eliminating our use of disposable plastics and increasing our use of biodegradable resources will be the best way to clean up the Great Pacific Garbage Patch. Organizations such as the Plastic Pollution Coalition and the Plastic Oceans Foundation are using social media and direct action campaigns to support individuals, manufacturers, and businesses in their transition from toxic, disposable plastics to biodegradable or reusable materials. To clean up ocean plastics focus on coasts, not the Great Pacific garbage patch - - Science. Daily. The most efficient way to clean up ocean plastics and avoid harming ecosystems is to place plastic collectors near coasts, according to a new study. Plastic floating in the oceans is a widespread and increasing problem. Plastics including bags, bottle caps and plastic fibres from synthetic clothes wash out into the oceans from urban rivers, sewers and waste deposits. Larger plastics are broken down into smaller fragments that can persist for hundreds or even thousands of years, and fragments of all sizes are swallowed by animals and enter the food web, disrupting ecosystems. One area of open ocean in the North Pacific has an unusually large collection of microscopic plastics, or microplastics, and is known as the Great Pacific garbage patch. The patch is enclosed by ocean currents that concentrate the plastics into an area estimated to be larger than twice the size of the United Kingdom. The patch has gained international attention, and there is now a project called The Ocean Cleanup that plans to deploy plastic collectors to clean up the region. However, a new analysis by Dr Erik van Sebille and undergraduate physics student Peter Sherman from Imperial College London suggests that targeting the patch is not the most efficient way to clean up the oceans. Dr van Sebille, from Imperial's Grantham Institute, and Sherman used a model of ocean plastic movements to determine the best places to deploy plastic collectors to remove the most amount of microplastics, and to prevent the most harm to wildlife and ecosystems. The study is published today in Environmental Research Letters. They found that placing plastic collectors like those proposed by The Ocean Cleanup project around coasts was more beneficial than placing them all inside the patch. The project proposes a system of floating barriers and platforms to concentrate and collect plastics and remove them. For a ten- year project between 2. China and the Indonesian islands, would remove 3. With all the collectors in the patch, only 1. Plastics in the patch have travelled a long way and potentially already done a lot of harm. Many microplastics enter the food web in these areas as microscopic animals accidentally eat them. Running the same model for areas rich in phytoplankton came up with a similar result: the overlap was reduced by 4. A recent analysis by Dr van Sebille and colleagues in Australia showed that more than 9. The pair will refine their analysis, but say the results are clear and hope that plastic collecting projects in the future will focus on the coastlines..
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