B.C.'s sockeye salmon may not survive climate warming: study

Canadian "superfish" are making an international splash this week. A prime specimen has landed on the cover of one of the world's most influential scientific journals, along with a study showing some of British Columbia's fabled sockeye salmon may not survive climate warming.

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Carcasses 'tip of iceberg' in BP oil spill

The death toll from the Gulf of Mexico oil spill goes far beyond the animal corpses washing ashore, says a report that warns that whale and dolphin deaths may be 50 times higher than believed.

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• Oil spill? Not that you can see from this Gulf Coast resort
• Spill no reason to halt deep-sea drilling: BP
• U.S. researcher touts cleaner oilsands extraction process

Jet contrails stoke global warming

Aircraft condensation trails crisscrossing the sky may be warming the planet on a normal day more than the carbon dioxide emitted by all planes since the Wright Brothers' first flight in 1903, a study showed on Tuesday.

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Arctic Ocean has become less salty, more unstable: scientists

More fresh water is pouring into the Arctic Ocean as glaciers melt, raising concern among some scientists.

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Ending the Galapagos rat plague

Scientists in the Galapagos Islands, which inspired Charles Darwin's theory of evolution, have airdropped cookies laced with poison to save native species from thousands of rats.

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New green software a 'Quick Tax for carbon'

The founders of a new carbon software company have set out to make it easy and affordable for small-to mid-sized businesses to take action on climate change

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