Fracking. Before fracking people were worried about "peak oil", and being dependent on unfriendly governments for our basic energy needs. Then with fracking we realized we are actually sitting on huge available oil reserves, and peak oil quickly became a quaint outdated concept.
That may be part of it, but as your parent comment mentioned, the Republicans weren't only worried about peak oil and being dependent on unfriendly governments, but also about climate change. Of course, none of these three problems went away, the point where fossil fuels will be exhausted just got pushed further into the future, and the fact that it will take more and more effort and environmental damage to get to the remaining resources is also undeniable.
But yeah, I guess your answer still applies indirectly: Fracking -> stronger interests by US oil companies -> money to the Republican party -> fossil fuel friendly regulations.
Speaking to the grandparent comment, fracking is precisely what earned US "energy independence" for the first time ever, in 2011.
The US is now the largest exporter of oil in the world.
Fracking has nothing to do with energy. When you look at EROI oil from a gusher is around ~100:1. For solar 10-25:1, wind 20-50:1, Fracking is 10:1 and most of that doesn't end up as diesel
It's useful for the plastics and petrochemical industry, but it's not going to make the country energy independent, even including battery costs wind still trounces.
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Not that it changes your point, but the other day I met a republican who said he doesn’t think climate change is a thing but peak oil, now that’s something to worry about.
The longevity of this plus the “no anthropogenic climate change” nonsense is astounding. Armchair climate sceptics are happy to seriously stick to talking points that are so out of date that even the oil industry doesn’t use them anymore.