Global warming: We are the cause

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The vast majority of scientists agreed that the causes of climate change are anthropogenic. This has been shown by an analysis of thousands of studies on the subject, which made ​​group of volunteers website Sceptical Science. The results are published in the journal Environmental Research Letters entitled “Quantifying Consensus on Anthropogenic Global in the scientific literature.” 

The volunteers studied 13,950 publications from the period 1991-2012 and found that 97% agree to the anthropogenic causes of overheating. Also based on an earlier analysis, minor, held in 2004, and in an informal survey, whose results were published last year. Any publication evaluated twice.

As the team leader notes, the difference between the conclusions of the analysis and the perception of public opinion on the issue is huge, since about 50% of the public realizes that scientists agree on such a large percentage on the causes of climate change. The managers of the project detect this difference in the “vested interests” and “disinformation campaign the public about the scientific consensus.” As an example of a document signed communication advisor of Republicans in the United States and which was leaked in 2002. “If the public come to believe that the scientific issues are settled, their views about global warming will differentiate,” wrote Frank Lanza. “Therefore, dialogue should continue to focus on the lack of scientific certainty.” 

Referring to the methodology followed by the volunteers, Sceptical Science states that investigations deemed too small human contribution to climate change, included 3% of those who reject anthropogenic causes. He also points out that many studies refer to the conclusions of the Intergovernmental Panel on Climate Change, under which global recorded since the mid-20th century to today is due primarily to humans. “As shown by recent studies, this statement is very conservative,” he concludes.

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