Slightly off topic, but to respond to the OP.
I am impressed that you note the difference between polls and actual scientific data.
Here is a sample of how polls can be wrong.
Yet another poll on polls.
One of the main problems with GW and other scientific issues, is that all the decisions are made by polls.
The politicians poll their scientists, experts, and constituents.
They go to the 'house of government' and they themselves are polled to 'make or break' the law that is on the table.
I think that most politicians only poll their constituents.