The Do the Math Movie is being screened concurrently at 7:00 pm local time on April 21 at house-parties and screenings across the country. At forty-two minutes, it tells the story of the rising movement trying to change the terrifying math of the climate crisis and fight the fossil fuel industry. Find a screening near you, host one yourself and add your name to The Nation's open letter imploring Secretary of State John Kerry to reject the Keystone XL Pipeline.