Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Dec 8, 2009
See www.igbp.net. Some people still question whether Earth's climate is changing as rapidly and profoundly as the majority of climate scientists suggest. The International Geosphere-Biosphere Programme has created a climate-change index to help show the scale of change the planet is undergoing.