5 must-see coral reefs before 'they' die (PHOTOS)

Coral reefs are vulnerable to climate change and without rapid genetic adaptation, they will not survive projected sea temperature increases over the next 40 years, experts say.

In fact, Coral Reefs around the world may be wiped out by 2050, according to a latest research report released by the World Resources Institute in Washington

Great Barrier Reef, North Queensland, Australia

# The Great Barrier Reef is around 18 million years of age in the north and 2 million Years old in the south, with the existing reef system being between 10,000 and 6000 years old.