GREEN
02/04/2009 05:12 am ET Updated May 25, 2011

World War IV: Will Global Warming Cause It?

Global warming is the cause of a number of damaging effects to the earth and its inhabitants, such as climate change, glacier retreat, rising sea levels, and now we may have a new threat on the horizon... world war! According to the 2007 CNA Corporation report, there is clear indication that as the tensions of global warming continue to heat up, so may the possibilities of war.

There are two obvious factors which will be the cause of the increasing threat of war:

Read more on Treehugger.com