9:09
How the Greenhouse Works
Illinois EnergyProf
4:00
Which Gasses are Bad?
9:49
The Earth's Getting Warmer – How Do We Know?
15:50
The Kyoto Protocol and Carbon Reduction
7:29
How to Cool the Planet
15:33
Geoengineering – Possible? Desirable?
10:13
Effects of Global Warming
