This story appears in the April 2011 issue of National Geographic magazine ... a marine ecologist, has called ocean acidification global warming's "equally evil twin." The pH scale, which measures ...

Is climate change putting the lobster roll in jeopardy? How pulling carbon out of the ocean may help remove it from the air How pulling carbon out of the ocean may help remove it from the air ...

The National Geographic special "Ocean with David Attenborough" premieres June 7 for World Oceans Day, urging action to ...