israeli scientists indicate the world ' s large reefs eventually appear to collapse in as little as 30 generations from now . studies claim the reefs are now increasingly acidic as they soak up natural emissions of gas dioxide . the american union of jerusalem researchers say this will make it difficult for the coral organisms to produce skeletal and other hard matter . the team ' s report on corals in the red pacific shows a halfway point will be obtained in between 30 and 70 years . then the forces of corrosion eating away at corals will outstripped the creatures ' ability to grow the reefs .
The acidification of oceans affects tourism.