Not just one cause for Ice Age die-off

Climate change linked to Ice-Age animal extinctions
by Wendy Koch, USA TODAY, Nov. 3, 2011
http://content.usatoday.com/communities/greenhouse/post/2011/11/climate-change-extinction-ice-age-mammals/1?csp=34news

Climate Change Drove Extinction of Ice Age Mammals, 
Study Says, Bloombergm November 03, 2011
http://www.businessweek.com/news/2011-11-03/climate-change-drove-extinction-of-ice-age-mammals-study-says.html

Study: Not just one cause for Ice Age die-off
By Dan Vergano, November 3, 2011 
http://www.suntimes.com/news/nation/8588809-418/study-not-just-one-cause-for-ice-age-die-off.html

The paper is:

Lorenzen, E. D., D. Nogués-Bravo, L. Orlando, et al., 2011, 
Species-specific responses of Late Quaternary megafauna to 
climate and humans. Nature. Published online 02 November 2011
http://www.nature.com/nature/journal/vaop/ncurrent/full/nature10574.html

Yours,

Paul H.