LECTURE_7_Climate_Change - LECTURE 7 CLIMATE CHANGE –...

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Unformatted text preview: LECTURE 7: CLIMATE CHANGE – PAST V.PRESENT Lecture Goals After today, you should be able to… • Explain the significance of CO 2 to global temperature • Explain the significance of temperature to extinction • Define “isotope” • Describe how scientists reconstruct paleo-CO 2 concentrations and paleo-temperature • Provide examples of the biotic consequences of high temperature/high CO 2 from periods of earth history [ video ] EXAM 1 Monday, September 20 – Extra Credit due Friday Review Session – Friday, 4.00 pm, BH 140 Photosynthesis Weathering Volcanism Respiration Decomposition Carbon Burial Photosynthesis Weathering Volcanism Respiration Decomposition Carbon Burial Photosynthesis Weathering Volcanism Respiration Decomposition Carbon Burial Photosynthesis Weathering Volcanism Respiration Decomposition Carbon Burial Why is atmospheric CO 2 important? Temperature and extinctions linked (4 out of 5 extinctions)! CLIMATE CHANGES OVER TIME (CO 2 concentration ) Stanley (2009) How do we know? What makes a carbon atom a carbon atom?a carbon atom?...
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LECTURE_7_Climate_Change - LECTURE 7 CLIMATE CHANGE –...

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