&gt; First, we seem to call different things an experiment. The guy didn&#x27;t made any experiment, he just charted some data. He didn&#x27;t change CO2 concentration in the atmosphere, keeping everything else equal, to check if it would affect the resulting temperature.<p>Right, and the LIGO didn&#x27;t create two colliding black holes to measure gravity waves, but measure gravity waves it did.<p>&quot;To be termed scientific, a method of inquiry is commonly based on empirical or measurable evidence subject to specific principles of reasoning.&quot; [1]<p>&gt; And personally, I think it&#x27;s really arrogant to assume that humanity is powerful enough to change the climate of the whole planet at this point.<p>So your disagreement is based on superstitious beliefs, not the scientific method. Exactly as predicted in my previous post.<p>[1] &quot;Rules for the study of natural philosophy&quot;, Newton transl 1999, pp. 794–6, after Book 3, The System of the World.