blank Global Warming
Three questions, five graphics
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This sequence of web pages is a very concise top level summary in graphs to show summary evidence to the two most basic questions about global warming. These graphs are excerpted from what is now a very substantial body of scientific literature on climate research and climate modeling.

Basic question #1:    Is global warming occurring?

Exhibit 1B:  Temperature trend from AD 1000 to 2005

GISS warming trend graph
Source:  NASA Goddard Institute for Space Studies, http://www.giss.nasa.gov/research/news/20060925/

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