Global warming is killing the Great Barrier Reef, study says

Photos: Australia's Great Barrier Reef suffers 'extreme' coral bleaching
There are 'winners' and 'losers' among corals as they respond to the accumulating impacts of climate change.
Hide Caption
1 of 14

Photos: Australia's Great Barrier Reef suffers 'extreme' coral bleaching
There are variations in the appearance of severely bleached corals. Here, the coral displays pink fluorescing tissue signalling heat stress.
Hide Caption
2 of 14

Photos: Australia's Great Barrier Reef suffers 'extreme' coral bleaching
The different color morphs of Acropora millepora, each exhibiting a bleaching response during mass coral bleaching event.
Hide Caption
3 of 14

Photos: Australia's Great Barrier Reef suffers 'extreme' coral bleaching
A bleached Acropora colony.
Hide Caption
4 of 14

Photos: Australia's Great Barrier Reef suffers 'extreme' coral bleaching
A severely bleached branching coral amongst the minimally bleached boulder coral.
Hide Caption
5 of 14