You've heard that plastic is polluting the oceans—between 4.8 and 12.7 million tonnes enter ocean ecosystems every year.

你听说过塑料污染海洋——每年有480至1270万吨塑料进入海洋生态系统。

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Ocean ecosystems are degrading.

海洋生态系统正在退化。

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Ocean ecosystems are in a lot of trouble and it all bears the hallmarks of human interference.

现在海洋生态系统有许多问题，而所有这些问题都有人为干扰的特点。

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Then in 2005 a Greenpeace report accused the company of encouraging bottom trawling, a powerful fishing method that damages ocean ecosystems, with its purchase agreements.

FORBES: Blue Waters Gray Areas

She noted her organization's leading role in protecting ocean ecosystems through the establishment of marine heritage sites, which represent one-third of the world's marine protected areas.

UNESCO: EDUCATION

Ocean ecosystems are beset by changes in nutrient levels due to run off near the coasts and by overfishing, which plays havoc with food webs nearly everywhere.

ECONOMIST: Ocean acidification