Simulating both the blanket (Greenhouse effect) & the cooling effect (PeTa) with the most simple model possible.
adding deforestation since 1880
next step: adding rain
With this very simple model is 1.35 degree Celsius temperarure rise explainable.
The model was first calibrated on the present Temperature of 288 Kelvin and the present amount of Forest of 40.6 mln km2. The GHG-factor is then 0.47.
Assumed is that when the Temperature becomes lower that a fraction less water will be evaporated.
It takes time for the model to iterate to a steady state. That's why the model starts at 1840 and in the period between 1840 and 1880 the amount of forest stay the same.
More PeTa radiation will lower the Temperature on Earth. PeTa radiation is released when water changes from water vapor to liquid.
Trees evapoTranspirate a lot of water. More trees will lead to more energy that will be evaporated and will lead to less infrared radiation emitted by Earth.