Oceans heading for mass extinctions, experts warn

Great Barrier Reef Park / AFP – Getty Images file http://www.msnbc.msn.com/id/43479398/ns/world_news-world_environment/# Thissection of Australia’s Great Barrier Reef in 2009 saw “bleaching” of coralcaused by warmer than normal ocean temperatures. Bleaching can kill reefs if it is prolonged. msnbc.com staff and news service reports WASHINGTON— Mass extinctions of species in the world’s oceans are inevitable if current trends of […]

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