Litigation moving through federal courts may play a large role in determining whether the incoming Trump administration can quickly roll back Obama-era climate change rules. Most prominently, an appeals court is poised to rule on EPA's Clean Power Plan (CPP) which could, as expected, largely uphold the rule and postpone the new administration's ability to immediately drop it. Another pending suit is a claim by 21 youth plaintiffs that the U.S. government is failing to protect their constitutional and public...