Sea levels along the east coast of the United States could rise 12 to 20 inches more than other areas this century if Greenland's ice sheet continues to melt at its present accelerating rate, according to the US National Center for Atmospheric Research. And since this is on top of the average global sea-level rise, cities such as Boston and New York would be hardest hit.

Thawing Arctic tundra is a "slow-motion time bomb" a new University of Florida study says. While initially plants on the thawed tundra will take up more greenhouse gases, sometime between 15 and 50 years on they will reach saturation and suddenly release massive amounts of methane and carbon.

Shareholders are beginning to flex their muscle in demanding greater environmental accountability from their companies. Chevron and Home Depot are two majors being pressured to improve sustainability by stock-holders - among 58 US and two Canadian listed firms forced to deal with global warming-related resolutions from the floor this season.

Extreme temperatures across the western United States will become more common by 2040, with today's once-in-50-years events occurring as much as once every two years, according to a new study which models climate change scenarios in far greater topographical detail than previously.

Odd Spot: Green glowing monkeys? Sounds like a bad Sci-Fi radiation movie. But, sadly, no: a Japanese genetics team has produced fertile modified marmosets that glow fluorescent green under blue light - all in the name of health research.

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