Earlier this year, the Trump administration repealed the Environmental Protection Agency’s 2009 “endangerment finding” that greenhouse gases pose a danger to public health. The determination was, until now, the foundation for federal climate policy. Among many challenges to the repeal, one stands out: a youth-led petition based on the constitutional rights to life, liberty, and religious freedom. Terra Verde host Zoe Loftus-Farren speaks with Elena Venner, a college student and the lead petitioner, and Julia Olson, the founder, co-executive director, and chief legal counsel of Our Children’s Trust, the public interest law firm representing young people in the petition.