Great Barrier Reef

50% of GBR vanished between 82 and 02: http://www.foxnews.com/science/2012/10/02/half-great-barrier-reef-lost-in-past-3-decades/ World's largest coral reef, extending for 1,250 miles along the northeast coast of Queensland, Australia, between 10 and 100 miles from shore. The Great Barrier Reef is formed from the skeletons of more than 400 species of red, yellow, green, purple, or blue sea animals...