A Preponderance

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A Preponderance of Evidence
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ground observations
satellite observations
balloon data
sea surface temps
continental ice sheet retreat
mtn. glacier retreat
polar ice cap retreat
permafrost melt
ice cores
coral reef cores
tree rings
BIOLOGICAL DATA
ocean sediment cores
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This Preponderance of Evidence Results in
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Energy Balance
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Energy Balance
IN
OUT
Constant Temperature (Equilibrium)
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Energy Balance
IN
OUT
Warming
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Energy Balance
OUT
IN
Cooling
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IN
Solar Input
Source NOAA
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Visible Reflection
Infrared Emission
OUT
Infrared Trapping
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600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
Paleo climate
400
300
280
260
240
CO2 Concentration
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
12
600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
Paleo climate
400
300
280
260
240
CO2 Concentration
CO2 ppmv
220
Glacial
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
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feedbacks
triggers
Sun
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Mars
Earth
Venus
Mercury
333 F
855 F
59 F
-67 F
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feedbacks
triggers
Sun
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feedbacks
triggers
Sun
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600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
Paleo climate
400
300
280
260
240
CO2 Concentration
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
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600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
Paleo climate
400
300
280
260
CO2 Concentration
240
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
20
600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
400
Todays CO2 Concentration
300
280
260
CO2 Concentration
240
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
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feedbacks
triggers
Sun
22
600
Projected Concentration After 50 More Years of
Unrestricted Fossil Fuel Burning
500
400
Todays CO2 Concentration
300
280
260
CO2 Concentration
240
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
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After 45 More Years of current energy use
patterns
600
500
400
Todays CO2 Concentration
300
300
280
260
CO2 Concentration
240
CO2 ppmv
220
200
180
Temperature
0
100,000
200,000
300,000
400,000
500,000
600,000
Years Before Present
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A Preponderance of Evidence
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(Physics)
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(Physics)
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Temperature anomalies
1.0
0.5
0.0
- 0.5
-1.0
1850
1900
1950
2000
Source Figure adapted from IPCC 1
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Temperature anomalies
1.0
0.5
0.0
- 0.5
-1.0
1850
1900
1950
2000
Source Figure adapted from IPCC 1
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(Physics)
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(Physics)