From a Forbes Magazine article:
http://www.forbes.com/sites/larrybell/2012/07/17/that-scientific-global-warming-consensus-not/
While real polling of climate scientists and organization memberships is rare, there are a few examples. A 2008 international survey of climate scientists conducted by German scientists Dennis Bray and Hans von Storch revealed deep disagreement regarding two-thirds of the 54 questions asked about their professional views. Responses to about half of those areas were skewed on the “skeptic” side, with no consensus to support any alarm. The majority did not believe that atmospheric models can deal with important influences of clouds, precipitation, atmospheric convection, ocean convection, or turbulence. Most also did not believe that climate models can predict precipitation, sea level rise, extreme weather events, or temperature values for the next 50 years.
A 2010 survey of media broadcast meteorologists conducted by the George Mason University Center for Climate Change Communication found that 63% of 571 who responded believe global warming is mostly caused by natural, not human, causes. Those polled included members of the American Meteorological Society (AMS) and the National Weather Association.
A more recent 2012 survey published by the AMS found that only one in four respondents agreed with UN Intergovernmental Panel on Climate Change claims that humans are primarily responsible for recent warming. And while 89% believe that global warming is occurring, only 30% said they were very worried.
A March 2008 canvas of 51,000 Canadian scientists with the Association of Professional Engineers, Geologists and Geophysics of Alberta (APEGGA) found that although 99% of 1,077 replies believe climate is changing, 68% disagreed with the statement that “…the debate on the scientific causes of recent climate change is settled.” Only 26% of them attributed global warming to “human activity like burning fossil fuels.” Regarding these results, APEGGA’s executive director, Neil Windsor, commented, “We’re not surprised at all. There is no clear consensus of scientists that we know of.”
A 2009 report issued by the Polish Academy of Sciences PAN Committee of Geological Sciences, a major scientific institution in the European Union, agrees that the purported climate consensus argument is becoming increasingly untenable. It says, in part, that: “Over the past 400 thousand years – even without human intervention – the level of CO2 in the air, based on the Antarctic ice cores, has already been similar four times, and even higher than the current value. At the end of the last ice age, within a time [interval] of a few hundred years, the average annual temperature changed over the globe several times. In total, it has gone up by almost 10 °C in the northern hemisphere, [and] therefore the changes mentioned above were incomparably more dramatic than the changes reported today.”
