Dr. Mathis Wackernagel is a panelist on Whole Earth Systems at the St. Louis Climate Summit. (footprintnetwork.org)
This was when humans did not just leave traces of their actions, but began to alter the whole Earth system. (dotearth.blogs.nytimes.com)
To bring about a significant, long - term warming (or cooling) in surface temperatures (even within a few thousand years) there would have to be an impossible flow of energy into out out of the whole Earth system. (judithcurry.com)