University Corporation for Atmospheric Research
Ucar: Atmospheric Science Explorers: Global Climate Change
A detailed overview of global climate change, with explanations of Earth's climate change, the carbon cycle, ecosystems, and greenhouse gases, and how the movements of matter and energy impact on climate. All information is reinforced...
PBS
Nova: The Big Chill
Explore some of the explanations for the ice ages that have occurred in the Earth's history. The explanations are all related to conditions caused by plate tectonics.