A study commissioned by 14 seafaring nations predicts that unchecked climate change could devastate fishery industries and coral reef tourism, causing loss of hundreds of billions of dollars by 2050.<br />” <br />” The report to be published today on the sidelines of a U.N. climate summit in Madrid says limiting global warming would lessen the economic impact for coastal countries but they also need to adapt to ocean changes.<br />” <br />” The authors say fish will migrate to cooler waters as oceans heat up and become more acidic, jeopardizing some fishing communities.<br />” <br />” While regions near the equator will suffer fish stock declines, the report forecasts increases in Arctic and Antarctic Oceans.<br />” <br />”<br />”Reef tourism is also likely to suffer as corals will die off largely wiping out a multi-billion-dollar industry in several countries by the end of the century.&nbsp;<br />