"historically the fossil fuel industry has been a major funding cornerstone of the right."

The Eastern Bloc in the Cold War was extremely keen on fossil fuels (and nuclear power) and very poor at dealing with pollution. As is the PRC.

In Western Europe, coal miners were the backbone of the far left in places like Germany and the UK including Communist parties. The British Labour Party's vote was traditionally strongest in coal mining areas.

I don't know so much about the US situation, but I am aware that some American coal miners were involved in socialist movements there many decades ago.