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This is are already happening. eg in Germany, young Friday-for-the-future activists won their court case arguing that currently lenient climate goals are unfair to future generations ( https://www.theguardian.com/world/2021/apr/29/historic-germa... )

The Good Ancestor is also a good read on this topic https://www.romankrznaric.com/good-ancestor

If this existed (or does) I would seriously consider getting a law degree and passing the bar.