The Warming of the Earth
A beginner's guide to understanding the issue of global warming
"Whereas in the past human impacts were local, reversible,
and escapable through migration, they are now typically, global, irreversible,
and inescapable." - Paul Ehrlich
the Climate-Change Challenge. Woods Hole Research Center Director John P. Holdren's PowerPoint presentation given at the SES Distinguished Scientist Seminar of the Marine Biological Laboratory in Woods Hole, Nov. 3, 2006. (6.5 MB).
The Greenhouse Effect »