WASHINGTON -- From Florida to Alaska and from coast to coast, nature's indicators show strong evidence of global warming in America, scientists said yesterday. A report co-written by University of Texas biologist Camille Parmesan concluded that more than 40 scientific studies link climate change with observed ecological changes. In half of the studies, the link is strong, the report stated.
Satellite data and a century of temperature records have shown an overall increase in global temperatures to parallel the buildup of heat-trapping greenhouse gases in the atmosphere. But in a report released by the Pew Center for Global Climate Change, Parmesan and University of Colorado ecologist Hector Galbraith say there is growing and scientific evidence that now shows specific trends in the United States.
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Despite the release of the studies, President Bush is unlikely to significantly alter his stance on the issue, a key White House official said yesterday. Mandatory regulation or caps on greenhouse-gas emissions are unlikely for the foreseeable future, White House science adviser John Marburger told Scripps Howard News Service. "Not in this administration," Marburger said.
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Examples include:
The red fox has shifted its habitat northward, where it is encroaching on the Arctic fox's range.
Southern, warm-water fish have begun to infiltrate waters off Monterey, Calif., previously dominated by colder-water species.
The Alaskan tundra, which has for thousands of years been a "sink" for carbon dioxide, has begun to release more of the gas into the air than it removes because warmer winters are causing stored plant matter to decompose.
Many Southern species of butterflies have disappeared entirely over the past century as their range contracted.
There have been documented trends in which the natural timing of animal or insect life cycles changed and the plants on which they depended did not."
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http://seattlepi.nwsource.com/national/198840_climate09.html