As Peter Sinclair of Climate Denial Crock of the Week (where I ran across the video) summarizes:
In a speech at the University of Oregon, James Hansen, NASA’s chief atmospheric scientist, walks listeners thru the most recent geologic periods, and speaks to the commonly heard climate canard, “It’s been hotter in earth’s history before – so what’s the big deal?’
Hope you enjoy it.
1. NASA Scientist James Hansen’s Testimony in UK Climate Activism Trial
2. Climate Scientist James Hansen & 100+ More Arrested in D.C. Protest [PICTURES & VIDEO]
3. 300 Years of Fossil Fuels in 300 Seconds