This is a political issue now. Debates around gravity would be less polarizing. We even have a term for those who do not agree (climate change deniers) which has roots in the holocaust deniers label which is very negative. Somewhere along the way science stopped, funding increased to fund ever more scary climate models. The solutions given were more of a wealth spreading scheme where poorer countries like china responsible for more green houses gases than the eu were allowed to continue without penalty. Richer countries could buy credits somehow the money would reduce greenhouse gases somewhere poorer.

If we stuck to science most would be on board. When Al Gore delivered the message the message changed.

The medium is the message.