Donald Trump’s advisers have prepared a short list of energy and environmental policy changes he can take now that he has been sworn in as president, including steps to limit the role that climate change plays in government decisions and speed the review of cross-border pipelines. The list of actions Trump can take imminently includes nullifying President guidelines that federal agencies weigh climate change when approving pipelines, deciding what areas to open for drilling or taking other major actions, two people familiar with Trump’s transition planning say.