Oceans Face Mass Extinction

Aired: 6/22/2011 | 0:04:37 | Clip
27 marine experts from 6 countries have released a report on the State of the Oceans where thy fear the conditions are ripe for mass extinctions of marine species. They've studied the data on overfishing, acidification, chemical pollution, temperature increases, coral reef extinction and climate change, and they are ringing the alarm.

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