Scientists Wary of Lake Superior Warming
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DULUTH, Minn. - For Jay Austin, who has made a career of studying the Great Lakes, the warming climate around Lake Superior is no mystery. But he was surprised to find the waters of the lake itself warming even more rapidly.
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Scientists at a global warming conference say they see potential triggers for runaway climate change but admit that when and how these notional doomsdays may be unleashed are debatable or quite unknown.
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Changes in climate and strong demand for Colorado River water could drain Lake Mead by 2021, triggering severe shortages across the region, scientists warn.
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By Bob Lamb, La Crosse Tribune, Wis.  Dec. 14--Ice fishing has been put on hold due to warm temperatures and treacherous ice conditions. Ice fishermen were out in full force through last weekend, but the recent warming trend has eroded ice.
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Experts in Chile say the disappearance of a lake in the south of the country was caused by climate change.
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Scientists disagree on whether the region's high subsidence rates are natural or due to human intervention.
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SILVER SPRING, Maryland  - A new movie showing young polar bears and walruses struggling toward adulthood in a melting Arctic puts a pair of charismatic faces on the global warming threat.
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Global warming is melting the Arctic ice faster than expected, and the world&#39;s oceans could rise by about a meter by 2100, swamping homes from Bangladesh to Florida, the head of a study said.
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By Dan Egan, Milwaukee Journal Sentinel  Sep. 17--People are worried Lake Michigan water levels are lower than normal, but most have no grasp of what "normal" is for the world's fifth largest freshwater lake.
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Ice caps are melting on both Earth and Mars. According to one researcher's controversial theory, this suggests that global warming has nothing to do with humankind.
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Few consequences of global warming pose as severe a threat to human society as sea-level rise. But scientists have yet to figure out how to predict it.
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By DAN EGAN  There is a torrent of opposition across the region to the City of New Berlin's request to pump Lake Michigan water out of the Great Lakes watershed, but that doesn't mean Wisconsin will necessarily heed it.
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Its vastness protects it from the immediate effects of global warming, but the world's largest ice sheet could be damaged if things get worse.
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WASHINGTON -- Ponds that have provided summertime water in the high arctic for thousands of years are drying up as global warming advances, Canadian researchers say.
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Scientists hope to learn more about what the Great Lakes' shorelines looked like about 10,000 years ago. They explored a limestone land bridge that went from Alpena to Goderich, Ontario &#151; a distance of about 125 miles &#151; and an underwater forest of petrified trees in Lake Huron.
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By Dennis Cauchon  Theories abound as to why Lake Superior is shrinking: Drought? Global warming? Drained for neighboring lakes?    BARAGA, Mich. -- "Where did the water go?" asks Ted Shalifor, manager of a marina and campground on Lake Superior's Chippewa Indian Reservation.
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If global warming continues unabated, melting ice could trigger a positive feedback loop that would cause sea ice to decline steadily for decades and then abruptly disappear.