ATM OCN 100 - Fall 2001 LECTURE 39

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ATM OCN 100 - Fall 2001LECTURE 39

• PAST CLIMATES CLIMATIC CHANGE
• A. INTRODUCTION
• What has the climate been like?
• Why has the climate changed?

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A. INTRODUCTION (cont.)

• Historical Aspects of Climatic Change
• Motivation - The Human Factor

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B. CLIMATIC VARIABILITY

• Overall Time Scales
• Overall Space Scales

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C. PALEOCLIMATIC INDICATORSEvidence from
Climatic Sensors

• Quantitative Instrumental Records
• Qualitative Historical Observations
• Indirect or Proxy Methods
• Tree Rings
• Ice Cores
• Radiochemical
• Pollen

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D. CAUSES for CHANGES in CLIMATETheories of
Climatic Change

• Important Considerations
• External Causes
• Internal Causes

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E. LESSONS FROM THE PAST
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Volcanoes
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Global CO2 EmissionsMarland, et.al. 2001 Carbon
Dioxide Information Analysis Center
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See Fig. 2.25 Moran Morgan (1997)
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See Fig. 19.9 Moran Morgan (1997)