Coral bleaching threat rises in the Great Barrier Reef

[ahlam1399]

Coral bleaching, a process in which corals lose their colour due to environmental stress, is a consequence of the rise in the superficial temperature of the sea to 33 degrees Celsius in February.

أكثر... ( http://zeenews.india.com/news/eco-news/coral-bleaching-threat-rises-in-the-great-barrier-reef_1865830.html )