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 (see below) 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.
The numbers published yesterday are daunting: the amount of plastic waste entering the ocean from land each year exceeds 4.8 million tons (Mt), and may be as high as 12.7 Mt. This is one to three orders of magnitude (10 – 1000 fold) greater than the amount recently reported in the high-concentration garbage patches.