It is a mix.
The facts are simple, we have know for nearly two centuries that greenhouse gasses make the earth warmer. Research has only given us an idea what the effects are likely to be with further warming due to increases of greenhouse gasses.
Big oil is spending massive amounts to keep the 5.3 trillion in subsidies it receives world wide. And it is not just about subsidies, for example the Koch brothers spend nearly a billion dollars during the last presidential election cycle which sounds like a lot, until you see that they will benefit 1.4 billion annually from the Trump tax cuts. Last year Exxon Mobil's fourth-quarter profit nearly quintupled after the Trump tax cuts. And it is not just greedy businesses and corporations who try to misinform for their benefit, the Mueller report exposed ‘Miners for Trump’ as a Russian troll effort.
So the policy debate is between responsible people who are saying, "lets make a real effort to reduce greenhouse gas emissions now" and people are saying "thousands of scientists worldwide are secretly working together so (evil) politicians can increase their power and/or taxes over every one, including the scientists."
Some 73 percent of Americans polled late last year said that global warming was happening. (The thumbs up/down on YA does not reflect that, there is one "joker" here with a large numbers of sock accounts, trying to bully the few actual scientists here)