global warming: fact or fiction?

Global Warming: Fact or Fiction?

Greenhouse Effect

•Solar radiation absorbed/reflected from earth

•Infrared radiation emitted/reabsorbed in atmosphere

http://www.neaq.org

Al Gore’sInconvenient Truth

Increased CO2 Emissions

http://staffwww.fullcoll.edu/tmorris/whatisglobalwarming/

Increased Global Temperatures

http://www.bigskyco2.org

Temperature Deviations

http://media.newsobserver.com/content/news/health_science/global_warming/story_graphics

Melting Ice Regions

•Arctic

http://www.psr.org

Melting Ice Regions

•Greenland

http://greeninstitute.net/files

Melting Ice Regions

•Antarctica

http://ascottishview.files.wordpress.com

Melting Ice Regions

•Antarctica

•Particularly in the peninsula

http://inel.files.wordpress.com/2007/09

Changing Weather

•Higher Temperatures

•More Moisture

•Turbulence

•Water is rerouted

Flooding

Some areas receive more rainfall

Drought

Some receive less

Soil evaporation

Self Correcting Problem?

•New York

•Los Angeles

•San Francisco

•Beijing

•India

•634 million people*

•Asia and poor nations at greatest risk

*http://www.usatoday.com/weather/climate/globalwarming/2007-03-27-sea-level-rise_N.htm

http://thevibe.socialvibe.com

Skepticism

Skepticism

•Less Cloud Cover

•Increased absorption of radiation

Skepticism

•Increased temperatures

•Increase cloud cover

•Increases deflection of radiation

Skepticism

http://www.digitaljournal.com

Skepticism

•Republican•Democrat

http://www.newrules.org

Skepticism

So What?

What We Can Do