Have you ever gotten into a car on a cool sunny day? The interior of the car can be much hotter than the outside atmosphere. In fact, our cozy planet is surrounded by an outer space of close to a temperature of absolute zero. The so-called greenhouse gases in earth’s atmosphere act like the windows of the car. The most abundant of these gases is CO2. It warms up as the electromagnetic radiation from the sun penetrates the Earth’s atmosphere.
1) Today's higher levels of greenhouse gases can be traced back to what historical event? _____________________________
2) List three unnatural sources of greenhouse gases:
1. _______________ 2. ________________ 3. _________________
3) Most meteorologists have detected a general ____________ trend in the temperature of our atmosphere.
4) How might air pollution actually cool the surface of the Earth? ____________________________________________________
5) If true, how would this affect global warming models? __ __________________________________________________________
6) The geological record conclusively demonstrates that cyclical weather patterns have a. short-term effects. b. long-term effects.
7) List three negative effects of global warming:
1. ________________ 2. ___________________ 3. ______________
8) Are there any positive effects of global warming? _______
List: _____________________________________________ ___________________________________________________________
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