Whether the court of appeals erred in holding that 28 U.S.C. § 1442 precludes removal by federal officers and persons acting under them unless the removing defendant's colorable federal defense arises out of the defendant's federal duty

question presented is: 1. Whether the court of appeals erred in holding that 28 U.S.C. § 1442 precludes removal by federal officers and persons acting under them unless the removing defendant’s colorable federal defense arises out of the defendant’s federal duty. Additionally, this case presents a second question on which the Court has asked the Solicitor General to provide the United States’s views in a similar case: 2. Whether a federal district court has jurisdiction under 28 U.S.C. § 1331 over nominally state law claims seeking redress for injuries allegedly caused by the effect of transboundary greenhouse gas emissions on the global climate, on the ground that federal law necessarily and exclusively governs such claims.