“the decision means that agencies like the EPA can’t create regulations that have expansive social and economic impacts on their own, despite decades of precedent doing exactly that. Such rules would now require Congress to specifically create laws to implement them, and given the difficulty of passing any federal legislation, it would drastically impair the EPA’s ability to regulate the pollution that’s heating up the planet.”
…
“Many of these other cases are still underway, but depending on how they’re decided, they could further erode the government’s tools for addressing the most urgent environmental problems.”
https://www.vox.com/23181832/supreme-court-epa-west-virginia-climate-regulation