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Unformatted text preview: -CO2 levels in Hawaii and average global temp.-trapping how much is radiated outside Carbon dioxide concentration-air bubbles=air from that period of time (ice core) Gases trapped in ice core bubbles can tell us about past climate conditions Past and future CO2 atmospheric concentration-stable for last 1000 years-Recent increases in global temperature have reversed a slight cooling trend. =1990 warm Vikings in Greenland in the 1200-1400s correlation between levels of CO2 and temp. Relative contributions to global warming...
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This note was uploaded on 06/16/2009 for the course BIO 53665 taught by Professor Iverson during the Spring '07 term at University of Texas at Austin.
- Spring '07