Biology & Science Questions : Causes of Global Warming

There are several causes of global warming, including changes in solar radiation, volcanic dust and natural greenhouse gases. Learn about how humans contribute to global warming through the burning of fossil fuels with help from a science teacher and field biologist in this free video on science.

Expert: Brian Erickson
Bio: Brian Erickson is a tutor in math and science, as well as a field biologist.
Filmmaker: Todd Green


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