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EarthTalk: Global Warming Skeptics

EarthTalk discusses “skeptics” that deny current agricultural practices, land use changes, deforestation, and the sudden rise in greenhouse gasses emitted into the atmosphere from the burning of fossil fuels has anything to do with the observed global average temperature rise and increasingly rapid changes in climate.

EarthTalk: The Green Cities Movement

EarthTalk for Monday, March 2. All about the Green Cities movement