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Transcript of http://www.pbs.org/teachers/connect/resources/7761/preview/
Why should I wear sunscreen on a
Sunscreen and UV
Still need proof?
Let's do it !!
The Greenhouse Effect
How it works...
Do you see the analogy greenhouse gases to an actual greenhouse?
carbon dioxide 82%
Nitrous Oxide 5 %
Even a few degrees...
Increase in Temperature
Comparing Carbon Dioxide to a Pizza
Carbon Dioxide produced from:
1. dead organisms decompose
2. volcanoes erupt
3. Humans breathe out
BUT now we added
cars, factories, and electric power plants.
Frozen at 32 degrees Celsius but at 33...
What is Global Warming