Changes

'''Global warming theory''' is the [[theory]] that human actions are responsible for the [[warming trend]] that has been in progress since the bottom of the [[Little Ice Age]] - at about the time of the [[American Revolutionary War]]. [http://www.sitewave.net/news/s49p1834.htm]

The '''anthropogenic global theory''' holds human beings responsible for most of the slight [[warming trend]] seen since the [[Little Ice Age]] - at about the time of the [[American Revolutionary War]]. [http://www.sitewave.net/news/s49p1834.htm]

A panel of the [[United Nations]] is "90% sure" that most [[global warming]] since about 1950 has been caused by human beings,<ref>[http://physicsworld.com/cws/article/news/26979 Mankind to blame for global warming, says IPCC]</ref> but most scientists are skeptical about this view.{{fact}}

 

An assessment panel created by the [[United Nations]] is 90% sure that most [[global warming]] since about 1950 has been caused by human beings.<ref>[http://physicsworld.com/cws/article/news/26979 Mankind to blame for global warming, says IPCC]</ref>

The idea that human activities, such as the combustion of [[fossil fuels]], can significantly warm the earth's atmosphere is called the enhanced [[greenhouse effect]].<ref>[http://zebu.uoregon.edu/1998/es202/l13.html Global Warming]</ref>

The idea that human activities, such as the combustion of [[fossil fuels]], can significantly warm the earth's atmosphere is called the enhanced [[greenhouse effect]].<ref>[http://zebu.uoregon.edu/1998/es202/l13.html Global Warming]</ref>