Climate change has become a political cause. That's both good and bad.
It's bad because politics and political agendas inevitably overshadow science, and causes often don't tolerate opposition.
It's good because if something needs to be done to stop/prevent damage to the ecosphere, it can only happen through political action. Scientists aren't going to, on their own, be able to effect, say, reductions in greenhouse gas emissions.
In a rational world the scientific evidence would be acted upon by politicians in an objective manner, following the dictates of the evidence.
But I hardly need to point out that it isn't a rational world.