Telling how and why the U.N. Intergovernmental Panel on Climate Change (IPCC) originated, Dr Ed Berry writes in the U.S.: "IPCC and climate alarmists have abandoned the time-tested scientific method. They exclude evidence that proves their theory is wrong. This is 'confirmation bias' and it contradicts the scientific method. In true science, proof that a theory is wrong prevails over all opinions, consensus, and so-called evidence used to support the theory. The proof is simple. Simple inspection of IPCC’s 2013 report shows IPCC made gross errors in its calculation of the human carbon cycle."