a "Peaking" in the economics of that technology. In addition, we still have less than 8 years of Proven Oil Reserves which must be 'husbanded' for our military (60% of consumption), as we go through the process of getting Advanced Nuclear Reactors approved and constructed. Trump's "Drill Baby Drill" with no emphasis on Nuclear and Renewables is a Suicide Mission for the USA...one that Trump's BFF, Vladimir Putin would (does) heartily endorse. As for Biden, Casey and Harris support for Fracking...it's only to 'keep the plane flying' until those other sources are able to take over consumer needs for Heat and Power...and in Casey's neck of the woods, to maintain employment and income for PA...which any Senator representing their constituents would/should do.
By no means is Casey "Bucking" Biden...or the Democratic Party Policy of decreasing reliance on Fossil Fuels for Heat and Power...i.e. the BIG PICTURE.
If you disagree with me, I'm more than happy to guide you through the reasoning with in-controvertible facts from the EIA (Energy Information Administration).
Link: https://prospect.org/environment/frackers-restrict-the-flow-and-raise-the-price/