The 97 percent claim was taken from a study paper by Australian John Cook, Climate Communications Fellow for the Global change Institute at the University of Queensland, and his colleagues, published in the journal Environmental Research Letters in May, 2013. The paper says nothing about the would-be dangers of climate change and it counts the number of publications, rather than the number of scientists, in support of human-made climate change. Never let facts get in the way of a good story.
The paper is a treasure trove of how-not-to lessons for a graduate class on survey design and analysis: the sample was not representative, statistical tests were ignored, and the results were misinterpreted.
Developing countries, led by Africa and China, nearly walked out of the UN’s climate talks in Bonn, Germany, on Monday, as the rift widened between the rich and poor nations over who should bear the larger financial responsibility to implement measures to curb climate change.