"Corporate Money and Science Denial
"...The Republican Party’s fast journey from debating how to combat human-caused climate change to arguing that it does not exist is a story of big political money, Democratic hubris in the Obama years and a partisan chasm that grew over nine years like a crack in the Antarctic shelf, favoring extreme positions and uncompromising rhetoric over cooperation and conciliation.
“Most Republicans still do not regard climate change as a hoax,” said Whit Ayres, a Republican strategist who worked for Senator Marco Rubio’s presidential campaign. “But the entire climate change debate has now been caught up in the broader polarization of American politics.”
“In some ways,” he added, “it’s become yet another of the long list of litmus test issues that determine whether or not you’re a good Republican.”
Mr. McCain ran for president on climate credentials that were stronger than his opponent Barack Obama’s, the scientific evidence linking greenhouse gases from fossil fuels to the dangerous warming of the planet has grown stronger. Scientists have for the first time drawn concrete links between the planet’s warming atmosphere and changes that affect Americans’ daily lives and pocketbooks, from tidal flooding in Miami to prolonged water shortages in the Southwest to decreasing snow cover at ski resorts.
That scientific consensus was enough to pull virtually all of the major nations along. Conservative-leaning governments in Britain, France, Germany and Japan all signed on to successive climate change agreements.
Yet when Mr. Trump pulled the United States from the Paris accord, the Senate majority leader, the speaker of the House and every member of the elected Republican leadership were united in their praise.
visions did not happen by themselves. Republican lawmakers were moved along by a campaign carefully crafted by fossil fuel industry players, most notably Charles D. and David H. Koch, the Kansas-based billionaires who run a chain of refineries (which can process 600,000 barrels of crude oil per day) as well as a subsidiary that owns or operates 4,000 miles of pipelines that move crude oil..."
How G.O.P. Leaders Came to View Climate Change as Fake Science - The New York Times