Medical researcher Dr. Klaus-Martin Schulte recently updated this research. Using the same database and search terms as Oreskes, he examined all papers published from 2004 to February 2007. The results have been submitted to the journal Energy and Environment, of which DailyTech has obtained a pre-publication copy. The figures are surprising.Why mandate economically disruptive actions by governments, businesses, and individuals when there is nothing approaching agreement on whether or not those actions, even if executed without a hitch (in reality, their implementation has been one of almost universal, utter failure), will ameliorate the situation? That's before even getting to the question of, if anthropogenic global warming is actually occuring, who will be hurt by and who will benefit from it.
Of 528 total papers on climate change, only 38 (7%) gave an explicit endorsement of the consensus. If one considers "implicit" endorsement (accepting the consensus without explicit statement), the figure rises to 45%. However, while only 32 papers (6%) reject the consensus outright, the largest category (48%) are neutral papers, refusing to either accept or reject the hypothesis. This is no "consensus."
The figures are even more shocking when one remembers the watered-down definition of consensus here. Not only does it not require supporting that man is the "primary" cause of warming, but it doesn't require any belief or support for "catastrophic" global warming. In fact of all papers published in this period (2004 to February 2007), only a single one makes any reference to climate change leading to catastrophic results.
In statistical work, the generally accepted level of confidence required for an analysis to be considered precise enough to take seriously is 95% for technical subjects, downwards to 90% for social subjects. The IPCC report seemingly pulled the 90% threshold figure out of thin, er, thick, air, with this in mind. The actual view among climate scientists comes nowhere near this overwhelming figure, however. Indeed, the summary, written by politicians and given to policy makers and released to the media, represents not a consensus or even a majority opinion, but the conclusions of a minority coalition of Luddite environmentalists, UN bureaucrats, and neo-Malthusians.
There is no reason to legislate at any level on behalf of their whimsical desires.