Number of heat wave days jumped by more than 50 percent in the 30 years to 2016, compared with the period of 1925 to 1954.
As heat waves have increased, kelp forests, seagrass meadows, and coral reefs have been lost.
Heat-waves induced wild fires also, that take out huge areas of forest.
10-week marine heat-wave near Western Australia in 2011 shattered an entire ecosystem and permanently pushed commercial fish species into colder waters.