Great Barrier Reef
"A fourth event after only one year is a major blow.”
Repairing the damage in the national underwater park could cost $2 million.
The devastating die-off appears to be heading toward yet another record.
Unless we do something about greenhouse gas emissions, say bye to these incredibly important ecosystems.
WHAT'S HAPPENING
Higher water temperatures are to blame.
If you thought the reef would come out unscathed, you were wrong.
"The message should be that it isn’t too late ... not we should all give up."
