In this week’s Nature representatives of several environmental organizations ask wrote, referring to the United States:

“Granted that the public is not at all scientifically literate about climate change, and granted as well global warming is not among the environmental issues that the public is most concerned about. However, the battle over public opinion about the existence of global warming has been won. Efforts made trying to convince the public that global warming is “real” are pretty much wasted on the convinced. The public overwhelmingly believes global warming to be real and consequential. In fact, I’d even hypothesize that when compared to what the public actually believes about climate change and the future, the IPCC reports would seem pretty tame.”

Consider these examples:


A 2002 Harris Poll in the United States, summarizes its findings as “Majorities Continue to Believe in Global Warming and Support Kyoto Treaty.”

And a 2004 Gallup Poll in the U.S. reported (subscription required) the following:

“About half of Americans (51%) believe that the effects of global warming have already begun to occur, while another 5% believe they will start within a few years, and 12% expect these effects to happen at some point in their lifetimes. Only 18% believe the effects will be postponed to future generations, and just 11% are completely skeptical, saying that deleterious effects from global warming will never happen. Gallup has not observed any significant change in this assessment over the past seven years. Not only do Americans think global warming is real, but when asked about it last year, 61% also believe that increases in the Earth’s temperature result more from the effects of pollution from human activities rather than natural changes, while only 33% believe the effects are the result of natural changes in the environment rather than human activities. This is the crux of much scientific and political debate surrounding global warming, and it appears that Americans are firmly on the side of the environmental movement.”

And polls from outside the U.S. find similar or stronger public views that global warming is of concern and has been observed (e.g., see this report (PDF) from the UK).

Given all of this data it seems to me that the only justification I can see for political advocates (on both sides) in the climate debate to ask scientists to “fight for their science” is to seek political advantage by pretending that that the climate debate is about science, when it is really about politics.

So when the authors of the Nature letter ask, “As environmental campaigners, we would like to ask climate scientists everywhere: why are we being left to carry the can?” one response might be that the data suggest that scientists have already ably done their jobs. It is not too far-fetched to think that the so-called “skeptics” are enabled and empowered by those who seek to scientize the climate debate. Perhaps it is time to discuss climate change in terms of policy and politics and to stop asking science to carry the can.