Global warming hysteria fading in Canada?

The subheading on this story caught my eye:

Almost half of those surveyed also endorse a carbon tax to fight climate change

Couldn't that also be written as "more than half of those surveyed do not endorse a carbon tax to fight climate change?"

Note the environment's 25 to 17 percent drop in six months here:

In Ontario, 16 per cent of those surveyed say the economy is the most important issue, just one percentage point behind the environment in importance.

Six months ago, only 5 per cent of Ontarians considered jobs and the economy No.1, compared with 25 per cent who pegged the environment as their first concern.

Now note the change over time in the "environmental issues" line the latest survey here (click to enlarge):



Note that "An Inconvenient Truth" was released in mid-2006.

Now check out the survey from about a year ago, which was entitled "State of Canadian Public Opinion: The Greening of Canada". Note the heavy emphasis on global warming, including the nugget that 73% of those surveyed thought that global warming was the result of human activity.

Why weren't those same global warming questions asked again this year?

Update: According to this survey, only about 25% of Americans agree with Al Gore on the environment.