A group of 3,146 Earth scientists surveyed around the world overwhelmingly agree that in the past 200-plus years, mean global temperatures have been rising, and that human activity is a significant contributing factor in changing mean global temperatures.
Questions used were reviewed by a polling expert who checked for bias in phrasing, such as suggesting an answer by the way a question was worded.
Two questions were key: "Have mean global temperatures risen compared to pre-1800s levels?" and "Has human activity been a significant factor in changing mean global temperatures?"
About 90 percent of the scientists agreed with the first question and 82 percent the second.
The numbers are even more convincing, when you include the subset of scientists who actually work in the field. Imagine that:
In analyzing responses by sub-groups, Doran found that climatologists who are active in research showed the strongest consensus on the causes of global warming, with 97 percent agreeing humans play a role. Petroleum geologists and meteorologists were among the biggest doubters, with only 47 and 64 percent respectively believing in human involvement.
"The petroleum geologist response is not too surprising, but the meteorologists' is very interesting," he said. "Most members of the public think meteorologists know climate, but most of them actually study very short-term phenomenon."
He was not surprised, however, by the near-unanimous agreement by climatologists.
"They're the ones who study and publish on climate science. So I guess the take-home message is, the more you know about the field of climate science, the more you're likely to believe in global warming and humankind's contribution to it."
97% of those in the know, sounds like a consensus to me.
Anyways, I have some MORE shovelling to do, so take that you commie academic experts, peddling your knowledge laden hoax, based on objective evidence.