Chapter 17 Section E: The Greenhouse Effect

- CO2 is a trace gas, making up about 0.033% of the atmosphere
- It plays a critical role in controlling our climate
- The greenhouse effect is the trapping of heat near Eath's surface by gases in the atmosphere, particularly CO2
- CO2 traps sunlight and restricts air circulation
- Without CO2, the atmosphere would be about 30 degrees C cooler

The Carbon Cycle

Back to Chapter