3 ms·

I am saying it is better to have control groups than not. Hopefully that is non-controversial.

• dpierce9 5y ago
  That isn’t controversial. The issue is your first point, there is no control group for the Earth as a whole system. So demanding a control group as a barrier to causal reasoning about the relationship between weather and the climate is an impossible bar. Weather is real. Weather has causes. We can and do reason about those causes all the time.