Climate Change

3:43pm

Thu January 17, 2013
Environment

Understanding Climate Change, With Help From Thoreau

Originally published on Fri January 18, 2013 10:35 am

Researchers in Massachusetts and Wisconsin are comparing modern flower blooming data with notes made by Henry David Thoreau and Aldo Leopold. The sight of irises blooming during a Boston winter helped spur the research.
Darlyne A. Murawski Getty Images/National Geographic Creative

Modern scientists trying to understand climate change are engaged in an unlikely collaboration — with two beloved but long-dead nature writers: Henry David Thoreau and Aldo Leopold.

The authors of Walden and A Sand County Almanac and last spring's bizarrely warm weather have helped today's scientists understand that the first flowers of spring can continue to bloom earlier, as temperatures rise to unprecedented levels.

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2:00pm

Thu January 17, 2013

4:57pm

Fri January 11, 2013
The Two-Way

U.S. Will Be 2-4 Degrees Hotter In Coming Decades, New Climate Report Says

A map depicts temperature changes over the past 20 years, compared to the average between 1901 and 1960. "The period from 2001 to 2011 was warmer than any previous decade in every region," according to the National Climate Assessment.
NOAA NCDC/CICS-NC

Temperatures will continue to rise in America, "with the next few decades projected to see another 2 degrees [Fahrenheit] to 4 degrees [Fahrenheit] of warming in most areas," according to the latest National Climate Assessment, which came out Friday afternoon.

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12:11pm

Tue January 8, 2013
The Two-Way

It's In The Books: 2012 Was Warmest Year On Record For Lower 48 States

Originally published on Tue January 8, 2013 12:37 pm

July 22, 2012: In Baltimore, John Rose tried to keep cool during one of the year's heat waves.
Rob Carr Getty Images

Last year "marked the warmest year on record for the contiguous United States," the National Climatic Data Center just confirmed.

This probably won't surprise many, but "a record warm spring, second-warmest summer, fourth-warmest winter and a warmer-than-average autumn" combined to make the year's average temperature 55.3°F.

That's "3.2°F above the 20th century average, and 1.0°F above 1998, the previous warmest year."

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3:32pm

Sun December 30, 2012
Environment

2013: A Tipping Year For Climate Change?

Originally published on Sun December 30, 2012 3:55 pm

Cracks form in the bed of a dried lake in Waterloo, Neb. The drought withered crops and dried out lakes across the nation's midsection in 2012.
Nati Harnik AP

This year's extreme weather was one for the record books; 2012 is slated to be the hottest summer on record.

The worst drought in 50 years struck the South and Midwest, devastating the U.S. agriculture industry. Deadly floods and superstorms paralyzed the northeast and other parts of the country.

While the public is in shock by extreme weather events that have taken place, environmentalist Bill McKibben and other members of the science community say it is a result of climate change.

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