In what's been heralded as a watershed climate change lawsuit, earlier this week an American district court judge ruled in favour of a group of young environmental activists who had sued their home state of Montana.

In what was the first constitutional climate trial in US history, the Held vs Montana lawsuit was filed in 2020 by 16 young Montana residents who argued that state agencies were violating their constitutional right to a "clean and healthful environment" by permitting fossil fuel development without considering its effect on the climate.

The Montana attorney general's office said it will appeal what it called an "absurd" ruling.

But just what might this win mean for future climate litigation brewing elsewhere around the world?

Guest:

Zoe Bush, Senior Solicitor in the Environmental Defenders Office