Encyclopedia of Earth
Encyclopedia of Earth: Climate Change: Past History
A collection of articles on methods used to investigate changes in processes that are, and have been, affected by climate. It also covers the discoveries that have been made about climate change in the Earth's recent and ancient past.
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Paleomap: Climate History
Have you wondered what the Earth's climate was like millions of years ago? Click on a period to view a map and explanation of ancient Earth's climate.