Many locations in the United States are already undergoing water stress. The Great Lakes states are establishing an interstate compact to protect against reductions in lake levels and potential water exports. Georgia, Alabama, and Florida are in a dispute over water for drinking, recreation, farming, environmental purposes, and hydropower in the Apalachicola–Chattahoochee–Flint River system. The […]
This graph shows trends in yearly dates of spring snowmelt onset in rivers throughout US West, based on U.S. Geological Survey streamgages. Reddish-brown circles indicate significant trends toward onsets more than 20 days earlier. Lighter circles indicate less advance of the onset. Blue circles indicate later onset. The changes depend on a number of factors […]
By MARILYNN MARCHIONE, AP Medical Writer 27 August 2010 The U.S. birth rate has dropped for the second year in a row, and experts think the wrenching recession led many people to put off having children. The 2009 birth rate also set a record: lowest in a century. Births fell 2.6 percent last year even […]
August 25, 2010 A relatively new type of El Niño, which has its warmest waters in the central-equatorial Pacific Ocean, rather than in the eastern-equatorial Pacific, is becoming more common and progressively stronger, according to a new study by NASA and NOAA. The research may improve our understanding of the relationship between El Niños and […]
By Bob Kelleher, Minnesota Public RadioAugust 12, 2010 Duluth, Minn. — On another muggy August afternoon in Duluth, the Park Point city beach is again packed. Clara Goellner is one of the three life guards trying to keep an eye on the mob of teens and children splashing away in water that’s typically bone-chilling. But […]
Over the past 100 years, the length of the frost-free season in Fairbanks, Alaska, has increased by 50 percent. The trend toward a longer frost-free season is projected to produce benefits in some sectors and detriments in others. Over the past 50 years, Alaska has warmed at more than twice the rate of the rest […]
As climate warms, many species in the United States are shifting their ranges northward and to higher elevations. The map shows the response of Edith’s checkerspot butterfly populations to a warming climate over the past 136 years in the American West. Over 70 percent of the southernmost populations (shown in yellow) have gone extinct. The […]
US precipitation has increased an average of about 5 percent over the past 50 years. Projections of future precipitation generally indicate that northern areas will become wetter, and southern areas, particularly in the West, will become drier. While precipitation over the United States as a whole has increased, there have been important regional and seasonal […]
BBC20 August 2010 Russian Prime Minister Vladimir Putin has sacked the head of the forestry agency for failing to deal adequately with the recent wildfires. The fires have destroyed hundreds of thousands of hectares of countryside, and shrouded Moscow in dense smog. Mr Putin replaced Alexei Savinov with his deputy, Viktor Maslyakov. However, some Russian […]
By Steve Cole, NASA Headquarters, WashingtonAug. 19, 2010 WASHINGTON — Global plant productivity that once was on the rise with warming temperatures and a lengthened growing season is now on the decline because of regional drought according to a new study of NASA satellite data. Plant productivity is a measure of the rate of the […]
