This possible future is calling more and more of New Hampshire's young people to act — and they're getting results.
Ember and Azalea Morgan of Andover remember where they were when they first realized what climate change was doing — and would do — to their planet.
"We were at a friend's house for a party, dinner, thing, blah blah blah," says Azalea, age 9. "And we were watching TV, National Geographic, I think, and I saw this video about, like, polar bears and global warming and how the ice is melting and they don't have a lot of ice left. And I got really sad."