[Note: This post is revised from the original version posted May 10, 2011 by the addition of the section on the article by Zhao and Runnin...

Global warming is the rise in the average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the ...
[Note: This post is revised from the original version posted May 10, 2011 by the addition of the section on the article by Zhao and Runnin...