Half of Great Barrier Reef lost in past 3 decades

Australia's Great Barrier Reef is a glittering gem ? the world's largest coral reef ecosystem ? chock-full of diverse marine life. But new research shows it is also in steep decline, with half of the reef vanishing in the past 27 years.��

Source: http://news.yahoo.com/half-great-barrier-reef-lost-past-3-decades-191029428.html

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