Curated OER
Ice Ages
Interested Earth enthusiasts are introduced to ice ages. The 26,000-year cycle is charted and the eras named. Several slides are dedicated to the carbon cycle and how it contributes to the changes. The reasons for the cooling of the...
University Corporation for Atmospheric Research
Ucar: Kids Crossing: Living in the Greenhouse
This web site provides information about the global climate, Earth's cycles, the greenhouse effect and greenhouse gases, ancient climate changes, and climate events and news.