israeli scientist predict the world ' s coral reefs will begin to collapse in as little as 30 years from now . investigations show the oceans are becoming unusually acidic as they soak up manmade exhaust of carbon dioxide . the hebrew university of jerusalem researchers say this will be it difficult for young living organisms to produce skeletal and other hard parts . the team ' s worker on corals in the red sea means a tipping site will be reached in between 30 and 70 ages . then the stresses of erosion eating away at corals will outstrips the organisms ' ability to make the mounds .
The acidification of oceans affects tourism.