The Trump administration cannot short-circuit a federal climate change lawsuit brought by a group of 21 children and teenagers, an appellate court ruled...In a suit...the young plaintiffs assert that the government’s actions to promote fossil fuel emissions violate the basic constitutional rights of future generations...The federal government had argued that the trial would entail burdensome requests for discovery and that the remedy requested by the young plaintiffs would violate the separation of powers...But...the U.S. District Court for the District of Oregon declined to dismiss the case and set it on a path toward a trial.  The Justice Department then sought a “writ of mandamus,” calling on the appellate court to stop the case before it could proceed further...[T]he 9th Circuit panel decided...that a halt was not justified in this case, and hard to justify in general...The case will probably proceed before the Oregon federal court...[T]he case will attempt to show that the globe is warming because of human activities and that the U.S. government isn’t taking action, meaning Americans who are children today will see their most basic rights violated, such as life, liberty and the pursuit of happiness...