Millions Took Part in the Youth-Led Global Climate Strike Friday. Here's Why People Marched

As many as a quarter-million people marched on the streets of New York City Friday for a youth-led climate strike inspired by Swedish climate activist Greta Thunberg. Globally, as many as 4 million people took to the streets in hundreds of countries. Democracy Now! was in the streets of New York on Friday speaking with climate strikers from the United States and around the world.