This is an incredibly simple climate model. It is based only on CO2 levels but is fun to play with to see very rough effects of different levels of CO2 output on global average temperature. Check here for information on its derivation.
Sensitivity is the increase in temperature in Celcius that you get when you double CO2 levels in the atmosphereSensitivity (2.0 to 4.0):
Enter the annual CO2 level growth in ppm that you want to use around each year. I have provided the actual values for 2000 - 2015 for reference. A value greater than 2.6 would mean you think levels will rise faster than they did around 2015. A value of 0 means we are emitting nothing and the Earth is holding the value steady. A negative value means we are actively removing carbon from the atmosphere. Click the update button to update the plots with your numbers.