Julie Kerr Casper - Global Warming Cycles: Ice Ages and Glacial Retreat
2009 | ISBN: 0816072620 | English | 212 pages | PDF | 13.3 MB
2009 | ISBN: 0816072620 | English | 212 pages | PDF | 13.3 MB
Earth has always exhibited patterns of heating up and cooling down. This title focuses on the mechanisms that caused past climate changes, putting the Earth repeatedly into and out of ice ages. It compares natural cycles with today's rapid global warming, caused principally by the behavior of humans.