This recently released report from the Pew Center on Global Climate Change "reviews the broad range of ecological changes that have occurred in response to human induced changes in the global and U.S. climate." The 67-page report, authored by Camille Parmesan of the University of Texas-Austin and Hector Galbraith of the University of Colorado-Boulder, is available in portable document format. The...

The National Research Council's Panel on Reconciling Temperature Observations published this report in 2000. The National Academy Press Website offers free online viewing of this important publication, which evaluated the much-publicized discrepancy between surface and atmospheric temperatures in the global change records. The Panel found that "the warming trend in global-mean surface temperature...

On January 22, 2001, the Intergovernmental Panel on Climate Change (IPCC) issued perhaps the most comprehensive and dire report to date on global warming and climate change. Over three years in the making, the full report includes contributions from 123 lead authors and runs over 1,000 pages. The report finds that global temperatures could rise as much as 10.5 degrees over the next century and...