By ANDREW SHARPLESS
Enjoy serving shrimp, oysters or crabs during your holiday meals? Then you should pay heed to the big climate change meeting coming up in Copenhagen. What nations decide there could determine if our ocean will continue providing tasty shellfish - or instead become part of a perilous chemistry experiment that could ravage valuable fisheries and coral reefs.
The problem, strange as it may seem, is that the ocean is doing a wonderful job of slowing down global warming. Every day, it removes nearly 30 million metric tons of carbon dioxide - the main warming gas - from the atmosphere. That's nearly twice what U.S. power plants, cars and factories spew daily into the sky. So we owe the ocean a big thanks for putting a brake on climate change and giving us time to find solutions.