It’s about greed and money and power.
I think, all scientists should be skeptics. I think, the nature of the job demands it.
Greenland used to be green, now it’s covered in ice. Iceland used to be covered in ice, but now it’s green. Human beings had nothing to do with those changes. The dinosaurs experienced a mass extinction event, human beings and human generated pollution had nothing to do with that either.
But, you are free to believe whatever you want to believe.