Climate Change

"U.S. Suggests No Emissions Limits To Protect Polar Bears"

"SEATTLE -- Polar bears are skating on thin ice in Alaska these days: Warming temperatures have resulted in dramatic shrinkage of sea ice, leaving the bears with fewer ice floes on which to rest and hunt seals. But at least for the moment, the Endangered Species Act won't be used to control the greenhouse gas emissions that conservationists say are contributing to climate change and posing one of the biggest threats to the bears' survival."

Source: LA Times, 04/18/2012

"U.S. Greenhouse Gas Emissions Headed Up Again"

"After dropping for two years during the recession, emissions of the gases blamed for global warming rose in 2010 as the economy heated up, the Environmental Protection Agency reports. Output of carbon dioxide and other heat-trapping gasses were up 3.2 percent from 2009 as the nation climbed slowly out of the deepest economic downturn since the Great Depression, the E.P.A. said."

Source: Green (NYT), 04/17/2012

"Antarctic Ice Sheet Collapse Linked To Ancient 'Mega Flood'"

"Dramatic warming at the end of the last ice age produced an intense rise in sea level and a massive ice sheet collapse in the Antarctic.

The sea level rise is known as Melt-Water Pulse 1A, and new research indicates it increased sea level by about 45 feet (14 meters) sometime between 14,650 and 14,310 years ago, during the same time as a period of rapid climate change known as the Bølling warming.

Understanding the impacts of earlier warming and sea-level rise is important for predicting the effects of future warming."

Source: LiveScience, 04/13/2012

"Drought Expands Throughout USA"

"The USA hasn't been this dry in almost five years."

"Still reeling from last year's devastating drought that led to at least $10 billion in agricultural losses across Texas and the South, the nation is enduring another unusually parched year.

A mostly dry, mild winter has put nearly 61% of the lower 48 states in "abnormally dry" or drought conditions, according to the U.S. Drought Monitor, a weekly federal tracking of drought. That's the highest percentage of dry or drought conditions since September 2007, when 61.5% of the country was listed in those categories.

Source: USA TODAY, 04/13/2012


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