Episode 290 - May 06 2013
How scientists are making progress toward eradicating the use of primitive wood stoves. New estimates suggest more people than previously thought are living without proper sanitation. Why life on Earth may have had a bone-chilling start.
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How scientists are making progress toward eradicating the use of primitive wood stoves. New estimates suggest more people than previously thought are living without proper sanitation. Why life on Earth may have had a bone-chilling start.
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