Global Warming
Web Sites
EPA Global Warming Site
http://yosemite.epa.gov/oar/globalwarming.nsf/content/index.html
Global Warming: Early Warning Signs
http://www.climatehotmap.org
Environmental Defense
http://www.environmentaldefense.org
NOAA Paleo Global Warming
http://www.ngdc.noaa.gov/paleo/globalwarming/home.html
Pew Center on Global Climate Change
http://www.pewclimate.org
US Global Change Research Information
Office (global warming)
http://www.gcrio.org/
Trends Online Contents
http://cdiac.esd.ornl.gov/trends/trends.htm