here . Decision was 5-4 split decision ruling against EPA, more or less breaking along party lines.
STEVENS, J., delivered the opinion of the Court, in which KENNEDY, SOUTER, GINSBURG, and BREYER, JJ., joined. ROBERTS, C. J., filed a dissenting opinion, in which SCALIA, THOMAS, and ALITO, JJ., joined. SCALIA, J., filed a dissenting opinion, in which ROBERTS, C. J., and THOMAS and ALITO, JJ., joined.
I haven’t read the opinion yet, but I’ve read a lot of case reports and rather enjoy them. What you should look for in this type of decision is whether the judges have picked the narrowest possible thing to rule on – that’s what they usually do and there’s a reason why they do. They tend to worry about repercussions of rulings in this case on other unrelated matters – there’s an old saying “Hard facts make bad law”. They have to consider not just climate change policy, but how this ruling on regulatory responsibility will be levered up in every other contentious regulatory issues.