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Corals bleach when they experience temperatures above their normal summer maximum for a month or two. The situation is made worse if there are few clouds, and a high level of UV radiation blasts the coral.
The Great Barrier Reef aerial survey began last month, and has now covered 911 individual reefs along the 2,300km structure from helicopters and planes.
Prof Terry Hughes, from James Cook University and head of the National Coral Bleaching taskforce, said only 68 of those reefs escaped bleaching entirely.
“We’ve never seen anything like this scale of bleaching before. In the northern Great Barrier Reef, it’s like 10 cyclones have come ashore all at once,” said Hughes.
originally posted by: DontTreadOnMe
a reply to: Metallicus
The big deal is that at some point the coral cannot heal and the habitat/ecosystem is disrupted/destroyed.
It's not a good thing for the health of the ocean.
originally posted by: Metallicus
a reply to: Kandinsky
If the reef fails then that IS natural selection. Animals that can't adapt are always dying off. It will probably be humans one day.