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Arctic mounds have gassy past

Monterey Bay Aquarium Research Institute (MBARI) scientists working in the Arctic Ocean unraveled the geological origin of many mysterious mounds, called “pingos”, off Canada’s north coast. Pingos are small, dome-shaped, ice-cored hills about 40m tall, found along the coast of the Tuktoyaktuk Peninsula. Earlier studies claimed these features were formed on land, and then submerged when sea level rose following the end of the last ice age, over 10,000 years ago. Apparently, the reverse may be true.

25 Million Dollar Earth Challenge

Former Vice President Al Gore joined airline tycoon Richard Branson today to announce a $25 million prize to the first person to come up with a way of scrubbing greenhouse gases out of the atmosphere in the battle to
beat global warming. Today, he joined Richard Branson, the British magnate, adventurer, and now eco-entrepreneur, in announcing the Virgin Earth Challenge, a $25 million bounty Mr. Branson is offering for any scientist or team who can figure out a way to pull the most significant heat-trapping gas, carbon dioxide, directly out of the air.