"The people I spoke with largely said that climate change was real and urgent. In their hands it became a weapon to justify their agendas—or at least a useful tool to expand their movements. ... They believe that water and land are becoming scarcer, forcing them to hoard and defend those resources. And they hold onto a nostalgic view for the way American life was in the 1950s, when there were half as many people, and nearly 90% of them were white."
https://www.propublica.org/article/john-tanton-far-right-extremism-environmentalism-climate-change