There are also probably one or two people who believe in some religion. There are also probably one or two people who believe in healing energy or homeopathy.

There are also probably one or two people who believe in some religion. There are also probably one or two people who believe in healing energy or homeopathy. Or antivax or whatever, it doesn't matter. It is a false standard to hold climate change to that we have to wait until we've convinced everyone. The problem right now is not convincing the last 20 odd percent of people its real, the problem is getting the 50 - 70% of people who believe its real to act. We already have a "belief" majority, we need an "action" one. Continuing to point to the non-believers as an excuse to accept or assume the status quo is even dumber than pointing at smokers and saying "we can't ban it from restaurants because they'll never change their minds". Climate change "skeptics" and deniers do not get a veto on the future. "Centrists" who use them as an excuse are not fooling anyone anymore.