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NASA Study: Stronger But Fewer Storms
August 31, 2007 06:36 PM - NASA
WASHINGTON - NASA scientists have developed a new climate model that indicates that the most violent severe storms and tornadoes may become more common as Earth's climate warms. Previous climate model studies have shown that heavy rainstorms will be more common in a warmer climate, but few global models have attempted to simulate the strength of updrafts in these storms. The model developed at NASA's Goddard Institute for Space Studies is the first to successfully simulate the observed difference in strength between land and ocean storms and is the first to estimate how the strength will change in a warming climate, including "severe thunderstorms" that also occur with significant wind shear and produce damaging winds at the ground.
Industrial Nations Agree To Look At Tough New Climate Rules
August 31, 2007 06:20 PM - Alister Doyle, Environment Correspondent
VIENNA - Industrial nations agreed on Friday to consider stiff 2020 goals for cutting greenhouse gases in a small step towards a new long-term pact to fight climate change. About 1,000 delegates at the Aug 27-31 U.N. talks set greenhouse gas emissions cuts of between 25 and 40 percent below 1990 levels as a non-binding starting point for rich nations' work on a new pact to extend the U.N.'s Kyoto Protocol beyond 2012.
Hotter Earth Implicated In Tropical Rainfall Rise
August 31, 2007 05:06 PM - Katherine Nightingale, Reuters
Washington DC - Rising global temperatures could be changing rainfall levels in the tropics, according to researchers. Scientists at the Goddard Space Flight Center in the United States analysed the global rainfall record from 1979 to the present, logged by the Global Precipitation Climatology Project. They found that while there has been no overall global change, rainfall over oceans in tropical latitudes increased by five per cent over the period and decreased by one per cent over land — a total increase of four per cent for the entire tropics. The year 2005 saw the highest amount of rainfall on record over both tropical land and ocean. Two-thirds of all rain globally falls in the tropics. The study was published in the August edition of the American Meteorological Society's Journal of Climate.
National Hurricane Center: Tropical Depression 6 Has Formed In Atlantic
August 31, 2007 02:28 PM - Reuters
NEW YORK - A well-organized tropical wave in the Atlantic Ocean about 250 miles east of the Windward Islands has formed into a tropical depression, the U.S. National Hurricane Center said late today. The NHC sent an Air Force hurricane hunter airplane to investigate the system early this afternoon to confirm if a depression had formed. It would be the sixth tropical depression of the 2007 Atlantic hurricane season.
Greenpeace Ship Arctic Sunrise Stops Coal Shipment
August 31, 2007 07:53 AM - Greenpeace
Toronto, Canada — The Greenpeace ship Arctic Sunrise has stopped shipment of coal from reaching the Nanticoke Generating Station on Lake Erie, preventing the coal freighter Algomarine from delivering its dirty cargo.
Industrial Nations Shy away from Stiff 2020 Goals
August 31, 2007 07:06 AM - Alister Doyle, Reuters
Industrial nations were shying away from fixing stiff 2020 guidelines for greenhouse gases cuts at U.N. talks on Friday in what environmentalists said would be a vote for "dangerous" climate change. A draft text at the U.N. talks dropped mention of steep cuts in greenhouse gases of 25 to 40 percent below 1990 levels by 2020 as a non-binding "guide" for rich nations' work on a pact to fight global warming beyond 2012, delegates said.
Food Demand and Climate Straining Soils
August 30, 2007 05:10 PM - Reuters, Alister Doyle
World food demand will surge this century with a leap in population, highlighting a need to protect soils under strain from climate change, experts said on Thursday. About 150 scientists and government experts will meet in Iceland from August 31-September 4 to try to work out how to safeguard soils from over-use and desertification when more food is needed and some farmers are shifting land to biofuels.
Rich Countries Deadlocked Over 2020 Climate Goals
August 30, 2007 04:55 PM - Reuters
Industrial nations were deadlocked on Thursday about whether to set stringent 2020 goals for cutting greenhouse gases at a first U.N. session about long-term climate targets, delegates said. A draft text at the Vienna meeting said rich countries should recognize a need for cuts of between 25 and 40 percent below 1990 levels by 2020 to avert the worst effects of climate change. Russia, Japan, Canada, New Zealand and Switzerland objected that such goals would be too demanding after a first period of the U.N. Kyoto Protocol, the main plan for fighting global warming, ends in 2012, delegates said.
Tropical Depression Could Form In Atlantic
August 30, 2007 12:55 PM - Reuters
NEW YORK - A tropical wave in the central Atlantic Ocean was a little better-defined early Thursday and could become the sixth tropical depression of the season in the next day or two, the U.S. National Hurricane Center said in its morning advisory. A tropical depression is a tropical cyclone in which the maximum sustained wind speed is 38 mph or less.
NASA Study Predicts More Severe Storms With Global Warming
August 30, 2007 12:10 PM - NASA/Goddard Space Flight Center
NASA scientists have developed a new climate model that indicates that the most violent severe storms and tornadoes may become more common as Earth’s climate warms.