Extreme Global Warming in the Ancient Past
ScienceDaily (Nov. 11, 2010) — Variations in atmosphere carbon dioxide around 40 million years ago were tightly coupled to changes in global temperature, according to new findings published in the journal Science. The study was led by scientists at Utrecht University, working with colleagues at the NIOZ Royal Netherlands Institute for Sea Research and the University of Southampton.
....
http://www.sciencedaily.com/releases...1110101313.htm