Question to the Royal Swedish Academy of Sciences

I try the debate strategy from the previous post in a new letter to

The Royal Swedish Academy of Sciences

Secretary Gunnar Öquist

The Royal Academy states in The Scientific Basis for Climate Change that

• The effect of greenhouse gases is well established.
  

Since this statement is critical as concerns a possibly alarming global warming from CO2 threatening humanity, I would like the Royal Academy to answer the following scientific questions related to the scientific statement:

• What effect of greenhouse gases is well established?
• Which are the original scientific sources demonstrating the effect?
  

Sincerely

Claes Johnson