During the past 200 years, the Earth has been doing a strange thing. It's warming up, and it's warming up fast. Warming that should have taken thousands of years has only taken a couple of hundred.
Part of the Climate Science in a Nutshell Series, this Nutshell looks at evidence of a rapidly warming planet.
This video was funded by a grant from the Corporation for Public Broadcasting, and was produced in collaboration with KUEN TV in Salt Lake City.