Australia's Great Barrier Reef is unparalleled in its beauty. But now a new scientific experiment is revealing the future for the reef if climate change continues, and it doesn't look good.
Tanks of tests
Coral in Tank 4 in July 2012. This tank imitated contemporary conditions on the reef.
Coral in Tank 4 in March 2013. The coral has developed as expected.
Coral in Tank 3 in July 2012. Conditions in this tank mimicked those expected in around 100 years if the world does nothing to kerb its fossil fuel use, with higher temperatures and acidity.
Coral in Tank 3 in March 2013. The coral has not survived and algae has taken over.