Word: greenland
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Dates: during 2000-2009
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...including winds and local currents that push water consistently toward or away from a particular shore. "One of the biggest effects," says the study's lead author, Robert Kopp, who did his research during a postdoctoral fellowship at Princeton, "is gravity." The world's giant ice sheets, such as Greenland's, are so massive that they actually pull the oceans toward them, raising sea level in the surrounding region. "If you were in Scotland, and Greenland started melting," he says, "local sea level would actually fall at first...
...estimated 800 marathons are now held around the world each year; 20 of them with 10,000 or more finishers. They include such punishing races as the Great Tibetan Marathon, held at 12,500 ft. above sea level; the Polar Circle Marathon, held on Greenland's ice cap; and the Pikes Peak marathon, which includes a 6,000-ft. climb to the summit of the Colorado mountain. Record times have fallen from close to three hours a century ago to close to two hours today, with Ethiopian Haile Gebrselassie setting the current record in Berlin last year with a time...
...levels - after all, greenhouses pump in extra CO2 to encourage growth - but they fail to note that hotter summers and increasing droughts could threaten agriculture. They assert that sea levels can rise only 1.5 ft. over the coming century, ignoring the very real risk of accelerated melting of the Greenland and Antarctic ice sheets, which would multiply that number. They downplay the risks of carbon dioxide as a greenhouse gas. And they make a habit of referring to any climate scientist who expresses fear over a warmer future as a "doomsayer" - a bit of a loaded term...
Some of the best evidence linking rising carbon dioxide levels to a warmer world comes from the coldest places on earth. Samples of ancient air extracted from deep inside the Antarctic and Greenland ice caps make it clear that CO2 is scarce in the atmosphere during ice ages and relatively abundant during warmer interglacial periods - like...
Another study released this week by the World Wildlife Fund (WWF) examines that problem and its potential future effects - and it's not pretty. The WWF researchers found that Arctic sea ice is melting at a faster rate than expected, and that the massive land sheets in Greenland and parts of Antarctic are vulnerable. The report predicts that global sea level will rise more than 3 ft. by 2100, significantly higher than scientists had previously believed. "What we're finding is truly sobering," says Martin Sommerkorn, the senior adviser for the WWF's Arctic Program. (See the top 10 green...