Graph of the Day: Trends in forest canopy green cover over the eastern United States, 2000-2010

Contact: Ruth Dasso Marlaire, ruth.marlaire@nasa.gov, Ames Research Center, Moffett Field, California,650-604-470925 February 2013 NASA scientists report that warmer temperatures and changes in precipitation locally and regionally have altered the growth of large forest areas in the eastern United States over the past 10 years. Using NASA’s Terra satellite, scientists examined the relationship between natural plant […]

Climate change dates back to dawn of first farmers – ‘Early farmers used a lot more land, and they cleared a lot more forest per farmer’

By Dan Vergano3 March 2013 (USA TODAY) – Deforestation by early farmers likely kicked off an era of man-made climate change long before our present era, suggests a climate scientist taking a hard look at agriculture’s early effects. Chopping down trees with flint axes, planting peas and shearing sheep — those all sound like the […]

Ocean acidification affects northeastern U.S. coasts more: study

By Tanya Lewis, LiveScience1 March 2013 (NBC News) – Coastal regions around the United States respond differently to ocean acidification, a large-scale study finds. In the new study, scientists from 11 U.S. institutions measured levels of carbon dioxide and other forms of carbon in waters off the East Coast and the Gulf of Mexico. If […]

Global poll reveals public concern for environmental issues ‘at record lows’ – ‘The public can see that the response of our politicians is completely inadequate to the threat scientists have revealed’

By Adam Vaughan 28 February 2013 (guardian.co.uk) – Public concern in environmental issues including global warming, the loss of species and air pollution has dropped to its lowest level in two decades, according to an international poll released this week. The GlobeScan poll, undertaken last summer before superstorm Sandy hit the Caribbean and New York, […]

Pessimists live longer and healthier lives: study – ‘Being overly optimistic in predicting a better future is associated with a greater risk of disability and death’

Washington, 28 February 2013 (ANI) – Pessimism about the future may lead to longer and healthier life, researchers have suggested. According to a new study [pdf], older people who have low expectations for a satisfying future may be more likely to live longer, healthier lives than those who see brighter days ahead. “Our findings revealed […]

Global warming study maps coral reef vulnerability – Reducing carbon emissions would delay annual bleaching events by more than two decades in 23 percent of the world’s reefs

By Bob Berwyn 26 February 2013 FRISCO (Summit Voice) – Using the latest data from the upcoming IPCC climate assessment, ocean researchers have concluded that about three-quarters of the world’s coral reefs could face annual bleaching events in just a short 30 years, and they’ve mapped out which areas will be hit first. “This study […]

Hotter, wetter climate slashes labor capacity by 10 percent – ‘We project that heat stress-related labor capacity losses will double globally by 2050 with a warming climate’

By Environment Correspondent Deborah Zabarenko 24 February 2013 WASHINGTON (Reuters) – Earth’s increasingly hot, wet climate has cut the amount of work people can do in the worst heat by about 10 percent in the past six decades, and that loss in labor capacity could double by mid-century, U.S. government scientists reported on Sunday. Because […]

Graph of the Day: Trends in average U.S. winter temperatures, 1970-2012

21 February 2013 (Climate Central) – While the U.S. as a whole has seen a warming trend that has raised annual average temperatures by 1.3°F over the past 100 years, warming varies seasonally, and it’s winter that has seen the fastest warming. An analysis of data from the U.S. Historical Climatology Network of weather stations […]

NASA satellites find alarming freshwater losses in Middle East, totaling 144 cubic kilometers in 7 years – ‘If it’s not replenished, eventually it will be gone’

Pasadena, California, 15 February 2013 (JPL) –  A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade. Scientists at the University of California, Irvine; NASA’s Goddard Space Flight Center in Greenbelt, Md.; and the National […]

Biofuel rush wiping out America’s grasslands at fastest pace since the 1930s Dust Bowl – Rates of grassland loss are ‘comparable to deforestation rates in Brazil, Malaysia, and Indonesia’

By Brad Plumer 20 February 2013 (Washington Post) – America’s prairies are shrinking. Spurred on by the rush for biofuels, farmers are digging up grasslands in the northern Plains to plant crops at the quickest pace since the 1930s. While that’s been a boon for farmers, the upheaval could create unexpected problems. A new study […]

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