Earth%26#039;s eccentric orbit and tilt cause ice ages, warm periods.
http://www.museum.state.il.us/exhibits/i...
Clues to End of the Last Ice Age - increased solar output warmed oceans, melting ice and releasing CO2
http://www.usc.edu/uscnews/stories/14288... 25% 1 Vote
http://royalsociety.org/publication.asp?...
0% 0 Votes
