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Santiago - Oct 17, 2003The Patagonia Icefields of Chile and Argentina, the largest non-Antarctic ice masses in the Southern Hemisphere, are thinning at an accelerating pace and now account for nearly 10 percent of global sea-level change from mountain glaciers, according to a new study by NASA and Chile's Centro de Estudios Cientificos. Climate Change And American Agriculture Faces Dwindling Benefits 
Boulder - Oct 17, 2003Computer-based simulations of U.S. agriculture show that, by the year 2060, the benefits of climate change to American croplands could be less than previous work had indicated. |
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Proposed Air Pollution Treaty Could Better Control Climate Change While Improving Health
Washington - Oct 17, 2003A global treaty focusing on intercontinental air pollution could be a better approach to controlling climate change than the Kyoto Protocol, according to a new scientific study. Penguins Thrive In Ocean "Oases" 
Greenbelt - Oct 08, 2003NASA satellite data was used for the first time to analyze the biology of hot spots along the coast of Antarctica. The biological oases are open waters, called polynyas, where blooming plankton support the local food chain. IceSat's Lasers Measure Ice, Clouds And Land Elevations 
Greenbelt - Oct 07, 2003NASA's Ice, Cloud and land Elevation Satellite (ICESat) has resumed measurements of the Earth's polar ice sheets, clouds, mountains and forests with the second of its three lasers. Crisscrossing the globe at nearly 17,000 miles per hour, this new space mission is providing data with unprecedented accuracy on the critical third dimension of the Earth, its vertical characteristics. Solar Contribution To Global Warming Predicted To Decrease 
London - Oct 07, 2003New research on the sun's contribution to global warming is reported in this month's Astronomy & Geophysics. By looking at solar activity over the last 11,000 years, British Antarctic Survey (BAS) astrophysicist, Mark Clilverd, predicts that the sun's contribution to warming the Earth will reduce slightly over the next 100 years. Scientists Use Satellite To "Pond-Er" Melted Arctic Ice 
Greenbelt - Oct 03, 2003NASA researchers and other scientists used a satellite combined with aircraft video to create a new technique for detecting ponds of water on top of Arctic sea ice. Until now, it was not possible to accurately monitor these ponds on ice from space. Huge Antarctic Iceberg Makes A Big Splash On Sea Life 
Greenbelt - Oct 02, 2003NASA satellites have observed the calving, or breaking off, of one of the largest icebergs ever recorded. Named "C-19" - the iceberg separated from the western face of the Ross Ice Shelf in Antarctica in May 2002, splashed into the Ross Sea, and virtually eliminated a valuable food source for marine life. The event was unusual, because it was the second-largest iceberg to calve in the region in 26 months. Geneticist Spells Out Consequences of Genetically Engineered Genes Escaping Riverside - Oct 
Riverside - Oct 01, 2003Domesticated plants are the descendants of wild plants and the two are therefore closely related. What would be the consequences of sex between cultivated plants and their wild relatives? Would they perhaps make strange bedfellows? |
Can Only Drugs Save The Rainforests
Salt Lake City - Oct 01, 2003Misty-eyed idealism alone will not save Earth's dwindling tropical rainforests. But a five-year, $3 million study in Panama indicates rainforests can be protected if the pharmaceutical industry establishes Third World laboratories and hires local researchers to look for new medicines extracted from plants that evolved defenses against insects. Early Arctic Thaw May And The Carbon Balance 
Pasadema (JPL) Sep 30, 2003Spring will be coming early next year to the great forests and tundra of the Arctic. Good for the vegetation, but perhaps not so good for the atmosphere. Spring in the high latitudes has been coming earlier in the past few decades. The early thaw means a longer growing season for the Arctic and the boreal forest, the ring of mostly evergreen trees that stretches across the northern reaches of North America and Eurasia. It also means that more carbon, now stored in the region's usually frozen soils, may be released into the air. NASA Selects Two Magnetospheric Mission Proposals For Feasibility Studies 
Greenbelt - Sep 29, 2003In the first step of a two-step process, NASA has selected two teams to conduct concept studies for the Magnetospheric Multiscale (MMS) Mission, the fourth investigation in NASA's Solar Terrestrial Probe mission line. Ecosystem Changes In Polar Regions Linked To Solar Variability 
Livermore - Sep 29, 2003A Lawrence Livermore National Laboratory scientist, in collaboration with an international team of colleagues, has reported that noticeable changes in the sub-polar climate and ecosystems appear to be linked to variations in the sun's intensity during the past 12,000 years. Paleontologist Offers New Theory On Dinosaur Extinction 
Princeton - Sep 26, 2003As a paleontologist, Gerta Keller has studied many aspects of the history of life on Earth. But the question capturing her attention lately is one so basic it has passed the lips of generations of 6-year-olds: What killed the dinosaurs? Ozone Hole Peak Approaches, But Falls Short Of Record 
Greenbelt - Sep 26, 2003This year's Antarctic ozone hole is the second largest ever observed, according to scientists from NASA, the National Oceanic and Atmospheric Administration (NOAA), and the Naval Research Laboratory. Northern Climate, Ecosystems Driven By Cycles Of Changing Sunlight 
Champaign - Sep 26, 2003Emerging geochemical and biological evidence from Alaskan lake sediment suggests that slight variations in the sun's intensity have affected sub-polar climate and ecosystems in a predictable fashion during the last 12,000 years. |
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