1. Decrease of Anthropogenic Influence on Atmospheric CO2 Levels Tanya Bruskewitz, Amy Schmidt, Matt Serwe

2. The Experiment Trend 1: 1% increase in the CO2 level from 2000 to 2010, then plateau to 2070. Trend 2: 1% increase in the CO2 level from 2000 to 2040, then plateau until 2070. Trend 3: 1% increase in the CO2 level from 2000 to 2070. Control: Global Warming Run with a CO2 trend analogous to the current trend- 1.9% increase.

3. Run #1 vs. Control CO 2 levels in 2010: –Atmospheric CO 2 = 410 ppm –Very encouraging, but highly unlikely –Snow and ice coverage increases at the poles and on land in the Northern Hemisphere –Global average temperature decrease = - 6.97°

4. Run #1 vs. Control

5. Run #2 vs. Control CO 2 levels in 2040: Atmospheric CO 2 = 553ppm No need to show a temperature map because it is analogous to Run #1 Curbing the trend of melting snow and ice with a more realistic CO 2 trend Evaporation occurs more over land and tends to rain out over the oceans

6. Run #2 vs. Control

8. Run #3 vs. Control CO 2 levels in 2070: Atmospheric CO 2 level = 746ppm Generally less dramatic cooling Ground albedo decreases at the South Pole Most realistic of the three runs based on CO 2 trend

9. Run #3 vs. Control

10. Summary Our models show an optimistic future for the world if changes are made now Current Proposal in the Senate –Systematic reduction of CO 2 emissions by cap-and-trade policy –Encourage people to “Go Green” –It WILL HELP!