Suing the world to save it. Children pioneer a right to a secure future.

In June 2023, the hottest June ever recorded in a summer that would break global heat records, 16 young people walked into a courthouse in Helena, Montana, and insisted that they had the right to a stable climate.

The moment was, in the United States, unprecedented. 

For years, youth around the world had been suing governments – state, regional, federal – and demanding more action by policymakers to address what scientists worldwide agree is an environmental crisis directly caused by human behavior. By 2022 there had been 34 global climate cases brought on behalf of plaintiffs ages 25 and younger – part of a global climate litigation explosion, according to Columbia University’s Sabin Center for Climate Change Law.

And in some places, young people had begun to make headway. A German court in 2021, for instance, agreed with youth that the government needed to do more to reduce emissions. Colombia’s Supreme Court agreed with young plaintiffs in 2018 that officials needed to better protect the Amazon rainforest, in part because of climate concerns. 

But in the U.S., the country that has sent more heat-trapping gases into the atmosphere than any other nation, young people had failed to get courts to rule in their favor. 

That was about to change. 

In the courtroom that day, the young people were asking not for any financial reward, but for the government of Montana to uphold its Constitution, one of a handful in the U.S. that explicitly protects both current and future citizens’ right to a healthful environment. There was Rikki Held, the oldest of the Montana youth plaintiffs at 22, whose name was on the lawsuit and whose family’s ranch was increasingly threatened by fires and floods. There were Lander and Badge Busse, teenage brothers whose schoolmates taunted them about this case, but who’d decided they needed to be part of this lawsuit to protect the wilderness where they loved to fish and hunt. And there was Grace Gibson-Snyder, a Missoula 19-year-old. Her ancestors had come to this big-sky state in a covered wagon. But Ms. Gibson-Snyder worried about whether this land would be habitable for her own children – if she felt it were morally appropriate to have any. She wore her favorite boots to trial,