Global Warming

1. Home
2. News & Issues
3. US Liberal Politics

US Liberal Politics
Search
• US Liberal Politics
• Liberal Leaders
• President Obama
• Issues & Views
• Share
• Print
Free US Liberal Politics Newsletter!Sign Up
Discuss in my forum
What Is Global Warming?
By Deborah White, About.com Guide
See More About:
• global warming
• climate change
• environmental issues

Photo: David McNew/Getty Images
Sponsored Links
Global Warming CollectionClimate Change Bibliography King's College Library, Cambridgewww.Kings.Cam.ac.uk/library
ÅF Energy EfficiencyEnergy efficiency in buildings. Long experience, profitable advicewww.energieffektivisering.se
Save the environmentby using renewable energy. Suzlon, leading wind energy companywww.suzlon.com
US Liberal Politics Ads
• Global Warming
• Climate Change
• Dictionary Definition
• Al Gore Climate
• Definition of Term Life
The term "global warming" refers to the increase in the average temperature of global surface air and oceans since about 1950, and to continuing increases in those temperatures.
Another term for "global warming" is "climate change."
Per the Intergovernmental Panel on Climate Change, which shared the 2007 Nobel Peace with Al Gore for landmark work on climate change:
"The global surface temperature is an estimate of the global mean surface air temperature. However, for changes over time, only anomalies... are used, most commonly based on the area-weighted global average of the sea surface temperature anomaly and land surface air temperature anomaly."
Per Wikipedia, "The Intergovernmental Panel on Climate Change (IPCC) concludes that...greenhouse gases are responsible for most of the observed temperature increase since the middle of the twentieth century, and that natural phenomena such as solar variation and volcanoes probably had a small warming effect from pre-industrial times to 1950 and a small cooling effect afterward.
"These basic conclusions have been endorsed by more than...