There are a large enough group of people who believe that climate change is political because some deniers have politicized science as if you can debate against science and fact.
I think you're making too big a deal of this. I would be really surprised if there's a flag ring going on considering the karma you need in order to be able to flag and articles about the environment are on the FP all the time.
Ironically it’s climate change advocates who have politicized science. The IPCC, whose reports are fundamental to climate change advocacy, is an intergovernmental panel. It is the epitome of politicized science. Judge whether or not this kind of politicized science is good or not, but in general I do agree that politicizing science is most likely a negative and ultimately a corruption of science.