You worked it correctly IF THE MODEL IS LINEAR.
In reality, I am not certain the model should be linear.
If the current best guess for climate sensitivity is 3.0 degrees C ( The increase in GMST for doubling of CO2 from 280 ppm to 560ppm)
Country member energy policies lead to stablilistaion at 650 ppm what would the de facto temperature target be ?
given that members accepted a 2.0 degree increase as its target in 1997
Can only think of
90 ppm is increase between 560ppm and 650 ppm
3.0 oC/280 p.p.m x 90 p.p.m = 0.964 oC or 1.0 oC ( to - one decimal place)
So 2 oc + 1 Degree = 3 oC
Anyone check this out for me ...
Many thanks
2 answers
Model is linear .. rough back of envelope calculations only required to complete this question thank you for your help and comments
1 answer