They tried doing what exactly?
Pissing and moaning without any idea as to a solution is doing nothing
There are ideas out there, but adults won't even listen to the other adults who have them/suggest them. And considering the dismissal the kids get for voicing their thoughts without any backup, you think they'll be listened to?
Taking the government to court is trying to do something, likely the last step they have. Even if it's force the government to take them seriously when they say "Do something!"
And yet people like you bitch and moan that they're doing even that. Tell them they're kids and they should STFU.
Thing is, people like you and I are the older generation who sat back and did nothing and they're pissed about it. They want to see things change, see it done now, not after we're dead. And I don't blame them.
So yeah, good on em, we'll see where it gets them.