I know it’s rhetorical, but given that you asked:

The entire Republican Party has adopted climate change denial as a doctrine, but the planet isn’t listening to them. What level of disaster will it take before conservatives admit they were horribly wrong to subvert efforts to deal with this catastrophe in the making?

The answer is that the GOP will not admit that they were wrong. They will somehow spin it that Democrats were at fault for not convincing them of their anti-science folly.

While the climate change denialism is full entrenched in the GOP these days, it also appears that being incapable of addressing public health is another central tenet. While the Flint water crisis drags on and the GOP is fully responsible for that mess, Gov. Christie just vetoed a bill to address lead poisoning in New Jersey.

These people simply ignore science and put the public at risk. That makes them dangerous.