It is fear of the unknown that they trade upon, Jack. Same as your local house of worship no matter the icon posted over the door. What if our theory is true? The stakes are too high to ignore, etc.

Where I live, 12,000 years ago there were 2 MILES of ice overhead. Geology is one of the few sciences with actual historic evidence in hand. We know this to be a fact. "Global Warming" has been in operation at least for that long here, and nobody asserts that pre-industrial revolution humans could have had any impact.

The dinosaurs lived on a tropical Earth for tens of millions of years.

This is the most successful con to come down the pike since Big Bang.

"The price of good shotgunnery is constant practice" - Fred Kimble