The Intergovernmental Panel on Climate Change
The IPCC Assessment reports reflect the consensus opinions of the world’s leading climate scientists. The Third Assessment in 2001 found: “Emissions of greenhouse gases and aerosols due to human activities continue to alter the atmosphere in ways that are expected to affect the climate.”
Third U.S. Climate Action Report, 2002
A report by the State Department and EPA that includes the U.S. greenhouse gas inventory, future emissions projections, and assessments of the potential impacts of climate change in the United States over the coming decades.
U.S. National Assessment
The Federal Government’s assessment of the potential consequences of climate change.
National Oceanic and Atmospheric Administration
NOAA’s global warming FAQ.
Goddard Institute for Space Studies
A part of NASA, the GISS conducts cutting-edge research on human-induced climate change.
The Hadley Centre
The UK’s scientific center for climate change research and projections.