New polls in the U.S. and in the U.K. show a continuing collapse in public conviction that climate change is a serious and urgent issue - a result that can only be interpreted as an unprecedented measure of success for the campaign to deny global warming.

A poll by Anthony Leiserowitz Climate Project at the Yale School of Forestry and Environmental Studies shows that the number of people who are "dismissive" of climate change has doubled and the number of people who are "alarmed" has dropped by half in the last two years.

The Guardian reported that an IPSOS Mori poll shows the number of Britons who believe that climate change is "definitely" a reality has dropped 30 per cent, from 44 per cent to 31 during the last year.

Such results demand that we look back over the past year to figure out what's causing these huge shifts in public opinion. It can't be the scientific evidence, which by virtually every measure gets more alarming by the day. Ice is retreating in the Arctic and the Antarctic. An unprecedented drought persists across southern Australia, the global average temperatures continue to edge dangerously higher, and other wierd weather seems to persist everywhere.

A new report published jointly by Yale University and George Mason University finds that Americans are much less concerned about climate change than they were just a year ago.  Fifty-seven percent of Americans polled believe climate change is happening, compared with a figure of 71 percent in October 2008, a 14 point drop. 

The reason ought to be clear.  The climate confusion campaign - waged by the like of Americans for Prosperity, the U.S. Chamber of Commerce, Competitive Enterprise Institute, American Petroleum Institute and American Coalition for Clean Coal Electricity (ACCCE) - is alive and well, and obviously still inflicting damage.

A poll released today by the Yale Project on Climate Change and its partners finds that 68 percent of Americans support a new international treaty requiring the United States to cut its emissions of carbon dioxide 90 percent by the year 2050.

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