Some other models are that the last ice age ended due to [link|http://news.nationalgeographic.com/news/2003/03/0317_030317_iceshelf.html|collapse of an Antarctic ice shelf], or [link|http://www.bbc.co.uk/weather/features/understanding/iceage_01.shtml|movement of the continents changing ocean currents], or [link|http://media.www.dailyemerald.com/media/storage/paper859/news/2007/11/28/News/The-End.Of.An.ice.Age-3119506.shtml?refsource=collegeheadlines|a comet hitting Canada], [link|http://www.dailybruin.ucla.edu/news/2006/oct/20/bogs-may-have-helped-global-wa/|bogs], etc.

:-)

I don't know enough about bogs and so forth, but it certainly seems to be the case that [link|http://news.nationalgeographic.com/news/2004/12/1201_041201_siberian_bogs.html|bogs can release tremendous amounts of CO2 and methane] as they warm. It looks like the [link|http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16905|Earth's albedo] is a major factor, one that trees and bogs will impact.

Thanks.

Cheers,
Scott.