What is the greenhouse effect, and how does it work?
3 pages that examine the complex issue of global warming by addressing the following questions:
What is the greenhouse effect, and how does it work?
What are the main greenhouse gases?
What is the present level of atmospheric carbon dioxide? Why has carbon dioxide concentration risen since 1860?
What are some predicted environmental damages if carbon dioxide emissions are not reduced?
In your analysis, how certain do we need to be about future predictions before acting on this problem?
Click on the following links to review additional information in videos relevant to this assignment: U.S. Policy and the Greenhouse Effect and Solar Panel Use on the Rise.