1. Global Warming Annie, Asher, Nathan

2. ● Greenhouse gases: composition is changing ● Increases solar flare activity: sun radiation goes through cycle ● Cyclical changes in the Earth’s orbit: elliptical → circular → elliptical ● Volcanic Activity: Release greenhouse gases Possible Models

3. ● Enhancement of the greenhouse effect is caused by human activities Enhanced Greenhouse Effect

4. ● Although debatable, the generally accepted view of most scientists is that human activities, mainly related to burning of fossil fuels, have released extra CO2 into the atmosphere Combustion of Fossil Fuels

5. ● Vostok Ice Core drilling o atmospheric composition o global temperatures Global Warming & Greenhouse Gases

6. ● Reduction of ice/snow cover ● Temperature increase ● Deforestation Mechanisms

7. ● V 0 =original volume ● ΔV=volume change ● ΔT=temp. change ● B=coefficient of volume expansion >10^-4 per degrees Celsius Coefficient of Volume Expansion

8. What all of that represents: The coefficient of volume expansion is the fractional change in volume per degree change in temperature. Coefficient of Volume Expansion

9. ● Natural reasons for rise in sea-level ● Enhanced greenhouse effect ● Difficult to predict precisely: o anomalous expansion of water o ice melting on sea versus on land Rise of mean sea-level

10. ● Outcome of the enhanced greenhouse effect Climate Change

11. ● Volume Expansion: dV=BV 0 dT ● Heat Capacity: Q=mcdT ● Latent Heat: Q=ml Possible Problems:

12. ● More efficient power production. ● Natural gas. ● Combined heating/power. ● Renewable/nuclear power. ● CO 2 capture/storage. ● Hybrid vehicles. Climate Change Solutions

13. http://ibphysicsguide.weebly.com/86-global-warming.html http://caphysicshl2011.wikispaces.com/8.6.1+Models+of+Warming Sources