A swing of opinion on Global Warming in America?

You lost me there. I have a hard time believing that 70% of us could agree on anything that touch's on economy or politics, which global warming certainly does.

It is such a broad range of different categories and different opinions all bundled into one its pretty easy to string out the numbers 70%

As for the swing to 70%??????
4 years ago they had the 70% the new survey gives 69%, doesn't that mean that the swing isn't much of a swing at all and the increase is actually a decrease.

Then again I did read that a survey is empirical evidence and is not open to interpretation as it only can mean one thing