Congress and the White House aren't going to address the climate crisis anytime soon. Will judges?

Both the administration and the fossil-fuel lobby have argued that the case shouldn't be allowed to move forward.

Days ahead of a UN climate summit, demonstrators in New York City urged world leaders to confront global warming.

Kelsey Juliana, an 18-year-old activist, is fighting climate change in the courts and walking across the country to spread the word on global warming.