MSNBC host Chris Hayes explained in a series of tweets how conservatives’ denial of the evidence of human-caused climate change exemplifies “the rot in the conservative movement” and the Republican Party.

USA Today reported on July 26 that according to the federal government’s Climate Prediction Center, “for the first time on record, every square inch of all 50 states is forecast to see above-average temperatures for the next three months.”

Hayes cited this report in explaining the GOP’s refusal to acknowledge the existence of human-caused climate change. Hayes went on to say the conservative movement’s climate change denial represents “breathtaking epistemic nihilism” and that the three-decade-long “conspiracy theory” that climate change is a hoax is the embodiment of “the Alex Jonesification of the GOP.” (Alex Jones is a notorious conspiracy theorist and 9/11 truther who received special guest credentials at the Republican National Convention):

As the world burns... https://t.co/yryf1u0JC0

— Christopher Hayes (@chrislhayes) July 26, 2016

1) I think climate change is key to understanding a big part of the rot in the conservative movement and GOP.

— Christopher Hayes (@chrislhayes) July 26, 2016

2) At one level resistance to climate science is perfectly natural for the right. They've seen (wrong) apocalyptic predictions before...

— Christopher Hayes (@chrislhayes) July 26, 2016

3) they suspect the science is a stalking horse for more state involvement, *and* it's a movement/party hugely backed by fossil fuels

— Christopher Hayes (@chrislhayes) July 26, 2016

4) So I get the instincts. But almost the entirety of the movement/GOP are 3 decades into clinging to a preposterous conspiracy theory

— Christopher Hayes (@chrislhayes) July 26, 2016

5) The theory that climate change is hoax requires such breathtaking epistemic nihilism at this point, any movement that adheres to it..

— Christopher Hayes (@chrislhayes) July 26, 2016

6) Is collectively declaring:we literally have no standards of evidence. Hence the Alex Jonesification of the GOP

— Christopher Hayes (@chrislhayes) July 26, 2016

Fossil fuel giants like ExxonMobil have known for nearly three decades that fossil fuel emissions harm the climate, but have been working to “deceive the public,” according to a report from the Union of Concerned Scientists (UCS). An earlier UCS report explained that MSNBC’s climate coverage has been overwhelmingly accurate, especially when compared to conservative cable news channel Fox News.