1. Global Warming
Greenhouse gases like carbon dioxide (CO2) and methane (CH4) absorb a part of this heat energy and radiate it back to the surface of the planet, trapping it in the lower atmosphere (troposphere). ... Deforestation is in part the result of population expansion in the tropics and the use of land for agriculture and wood for energy. ...
- Word Count: 2775
- Approx Pages: 11
- Grade Level: Undergraduate