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We are watching "An Inconvenient Truth". But who decides what truth is?
Evidence must play a part, but is all evidence reliable?
Who should we believe?
Opinions are different from facts - it is difficult to establish some facts.
The movie is convincing. I believe it. Many don't.
Here are some websites with different viewpoints.
There are also some cool sites with pictures of Earth from Space and more...
http://researchpark.arc.nasa.gov/lecture%20series/archive/Benson_Lecture.html
http://www.theglobaleducationproject.org/earth/global-ecology.php
http://www.junkscience.com/Greenhouse/
http://news.nationalgeographic.com/news/2006/05/060524-global-warming.html
http://www.dels.nas.edu/basc/earthobservations/?gclid=CLjKwdLx5JUCFRGiiQodTk7xeA
http://virtualterritory.wordpress.com/2007/07/09/inconvenient-truth-like-slides-of-the-our-globe-from-space/