Um . . . does Greenpeace really want to be suggesting that they're planning on unleashing some kind of youth-driven terrorist campaign if congress doesn't act swiftly on climate change?
I could, however, see this as a promising movie concept. It's 2011, there's still no carbon tax or cap-and-trade system in place, so a bunch of 16 year-olds band together to sabotage the global economy gleefully killing oldsters wherever they find them. For ideological balance, you could work a Social Security angle into it.