The country’s first constitutional climate trial, taking place in Helena, has reached its halfway point. Youth plaintiffs in Held v. Montana are suing the state over its energy policies, claiming they violate the kids’ state constitutional right to a clean and healthful environment by worsening global warming. Montana Public Radio’s Ellis Juhlin has been in the courtroom as the plaintiffs laid the groundwork for their arguments. She joined Montana Public Radio’s Morning Edition host Austin Amestoy with a recap.