Politicians realize combatting climate change is going to require drastic changes on a societal level, particularly with deep regulations, public work projects,

Politicians realize combatting climate change is going to require drastic changes on a societal level, particularly with deep regulations, public work projects, etc. They already know what their stance is going to be before any of this data comes out. It happens every year. The status quo is too comfortable and lucrative. If you've decided to do nothing in response to the reports, the easiest talking point to garner support is to say the science is biased, unreliable, and so on. That talking point has worked for decades. And it has a real impact with people who take it at face value.