I have a cousin who is a PhD in physics and a climate researcher and he is a Republican and a conservative and he says many scientists are conservative-- particularly in physics, chemistry, and in climate change focused on "hard science" atmospheric, chemical, and ocean aspects of climate change and the modeling of these impacts (he jokes that the biologists are liberals). He feels that the evidence of climate change caused by human activity is too strong to deny and much of the climate change denial is based on ignorance. He suggests reading the following simple graphs that make the point: https://www.bloomberg.com/graphics/2015-whats-warming-the-world/