...but it is. We all like to think it's not, but it is. When the politicians paying you are all for global warming then you say "global warming" and keep your trap shut about the politicians who decide whether you're funded or not.
It's not much different than the chocolate industry funding some "science" to get a "healty benefits of chocolate"-report out. "Chocolate helps in the fight against heart disease!" - suddenly becomes a headline.
Science is not "pure" and is often wrong. That's the history of it. Add to it how everything is politicized these days, including science and it leads one to question their motives. I don't doubt that there are scientists fully on-board with global warming who are very vocal about it. At the same time I don't doubt that there are plenty of scientists who are not on board with global warming and are smart enough to keep their traps shut so that they can continue getting funded and feed their families.
NASA and NOAA have been politicized by global warming. They like their funding.
Note: I'm not saying pro/con on global warming, just pointing out the political realities of all of it and that's going to upset people.