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Ocean Currents

News, opinions, photos and facts from Ocean Conservancy

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Trashing the Ocean: New Study Provides First Estimate of How Much Plastic Flows into the Ocean

Posted On February 13, 2015 by

8 million metric tons. That’s 17 billion pounds. That’s a big number. It’s also the amount of plastics that scientists have now estimated flow into the ocean every year from 192 countries with coastal access.

A groundbreaking study was published yesterday in the international journal Science and released at the annual meeting of the American Association for the Advancement for Science in San Jose, California. This work is part of an ongoing international collaboration among scientists at the National Center for Ecological Analysis and Synthesis (NCEAS) at the University of California, Santa Barbara to determine the scale, scope and impacts of marine debris – including plastics – on the health of the global ocean. Spearheaded by Dr. Jenna Jambeck, an environmental engineer from the University of Georgia, and other experts in oceanography, waste management and materials science, this is the first study to rigorously estimate the flow of plastic materials into the global ocean.

For the last decade, scientific evidence has been mounting that once plastic enters the ocean it can threaten a wide diversity of marine life (from the smallest of plankton to the largest of whales) through entanglement, ingestion or contamination. The images of how plastics kill wildlife aren’t pretty. But if we are going to stop this onslaught we must know how much material is entering and from where.

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Overflowing Trash Cans Lead to an Overwhelmed Ocean

Posted On January 5, 2015 by

Los Angeles is a city overflowing:  with culture, with movies and music, with people—and with trash. A recent internal report shed light on a big problem. Los Angeles has more trash than it can handle. Despite its size (nearly 500 square miles), the city only has approximately 700 public trash cans.

That’s correct:  700. One public trash can for every 5,548 people. That math simply does not work.

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Implementing Solutions in our “Plasticene Epoch”

Posted On June 16, 2014 by

Photo: Nick Mallos

Plastics are everywhere. And by that I don’t just mean in the physical sense, but also in terms of the media. Everywhere I look lately newspaper and blog headlines are focused on the increased pervasiveness of plastic pollution in our ocean.

In the New York Times’ Sunday Review, the Editorial Board highlighted the plasticization that’s taking place “From Beach to Ocean” around the world. Their focus was Kamilo Point, Hawaii. For the past decade, the Hawaii Wildlife Fund has worked tirelessly to keep Kamilo clean from the onslaught of plastic pollution that washes ashore daily by removing almost 350,000 pounds of debris. I’ve had the personal (mis)fortune of working at Kamilo and in some places I measured plastics densities upwards of 84,000 pieces per square meter of beach. These plastics are not in the form of bottles or caps or bags but rather the fragmented, millimeter-sized version of their original consumer product form. And on a nearby beach at Kamilo, geologists have identified a new kind of plastic-infused rock that will NEVER break down.

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Ocean Conservancy Talks Trash… and Solutions

Posted On June 16, 2014 by

Photo: Thomas Jones

Plastic in our ocean — I think we can all agree this isn’t a good combination. The question is what do we do about it? This year, Ocean Conservancy and our partners collected the largest amount of trash in the 28-year history of our International Coastal Cleanup. In that time, volunteers have removed more than 175 million pounds of trash, much of it plastic, from beaches and waterways around the world. From this first-hand experience, we know the problem is getting worse, and it goes deeper than you might think. The good news is this is a problem we can fix. It will require a new approach to how we deal with plastic pollution, but it is a global issue we can and must solve. Let’s consider the facts. In the next 25 years, ocean plastics could grow to 300-500 million tons, or about one pound of plastics for every two pounds of fish in the sea. So where does it all go? We can’t yet say for sure, but when plastic fragments into smaller, bite-sized pieces, we do know that it is being ingested by fish, sea turtles, marine mammals, and a host of other ocean creatures. Because plastic particles adsorb pollutants in concentrations that can be 100,000 to 1 million times greater than that found in surrounding seawater, the implications to the health of marine life are profound and deeply troubling.

Read more at the Huffington Post