This is an opportunity to look in-depth at the specific issues of long-term climate change, and the lessons that our paleontologists have shown about the risks of abrupt climate change and the issues of new energy systems to mitigate or avert some of the great risks that lie ahead.  -   Jeff Sachs     Quotes
This is an opportunity to look in-depth at the specific issues of long-term climate change, and the lessons that our paleontologists have shown about the risks of abrupt climate change and the issues of new energy systems to mitigate or avert some of the great risks that lie ahead. Jeff Sachs