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This is the fifth of a multi-part podcast series on the exhibit, "Earth Lab: Degrees of Change," from the Koshland Science Museum.  You can participate in the exhibit either by visiting the museum in Washington, DC or online at:


In this podcast we will look at how natural processes affect climate change. Topics include:

1. Variations in Solar Output

2. Variations in Earth's Position and Orientation

3. Volcanic Activity

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