It's my observation that most of the climate denialists are often very very old, like in their late 50s or retired. I have been seeing this on LinkedIn. Many of those are either retired or about to. Is there a specific reason behind this? What comes to my mind is that they know that anyways they don't have much longer to live, so let their greed be still working while they are still alive at the expense of the future generation. That's just diabolical (to the least). Greed and the tendency to get fulfilled can never be satiated no matter how much we consume the planet, there's no end to this. And these oldies climate denialists show me that. Many own business generating a lot of revenue, enough to live a good life in the US and still their greed hasn't stopped there.