question archive How to calculate ΔT2x climate sensitivity that has useful units of ?C / (2xCO2) - the increase in temperature (?C) per doubling of CO2 (2xCO2)? Hint: Remember the radiative forcing per doubling (2xCO2) of CO2 is 4 Watts / m2 per doubling

How to calculate ΔT2x climate sensitivity that has useful units of ?C / (2xCO2) - the increase in temperature (?C) per doubling of CO2 (2xCO2)? Hint: Remember the radiative forcing per doubling (2xCO2) of CO2 is 4 Watts / m2 per doubling

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How to calculate ΔT2x climate sensitivity that has useful units of ?C / (2xCO2) - the increase in temperature (?C) per doubling of CO2 (2xCO2)?

Hint: Remember the radiative forcing per doubling (2xCO2) of CO2 is 4 Watts / m2 per doubling.

What's the formula for getting ΔT2x?

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Answer: The formula for getting ?T2x is; ?T2x = ?T/2xCO2

 

 

Details and calculations.

The 2xCO2 ­is the doubling of CO2 concentration which results to a forcing of 4W/m2. Climate sensitivity, ?T2x with the units of oC/2xCO2 .

Then ?T2x = change in temperature due to the doubling/2xCO2  

                  = ?T/2xCO2  

                ?T is approximated to be 3oC from when CO2 doubles from 280 ppm to 560ppm.

?T2x = 3oC/4 W/m2 = 0.75oC/ (W/m2)

Step-by-step explanation

 

 

The 2xCO2 ­is the doubling of CO2 concentration which results to a forcing of 4W/m2. Climate sensitivity, ?T2x with the units of oC/2xCO2 .

Then ?T2x = change in temperature due to the doubling/2xCO2  

                  = ?T/2xCO2  

                ?T is approximated to be 3oC from when CO2 doubles from 280 ppm to 560ppm.

?T2x = 3oC/4 W/m2 = 0.75oC/ (W/m2)

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