1. Global = whole earth Warming= temperature going up
Global Warming
Global = whole earth
Warming= temperature going up

2. Greenhouse effect
Heat reaches Earth’s surface, reflects off and escapes into space
Some heat is absorbed by gases in the troposphere and warms the air
Water vapor, carbon dioxide, CFC’s, methane, and nitrous oxide

3. Temperature vs. Carbon Dioxide
CO2 levels are higher when Northern Hemisphere is in winter
WHY?
Plants are not absorbing CO2
We release more CO2 today than at any other time in our history
Trees are burned, coal is burned, automobiles are driven, etc.

5. Global Warming Most scientists predict the Earth will continue to warm
Many also believe this is directly linked to increased levels of greenhouse gases
Effects include: melting ice, changing of sea levels, changes in weather patterns locally and globally, human health problems, effects on agriculture, et al
Kyoto Protocol: requires developed countries to decrease CO2 emissions to below 1990 levels