NASA used satellite measurements of carbon dioxide to create a startling new 3D video that shows how the greenhouse gas moves through Earth’s atmosphere. In a little over a minute, you can see CO2 concentrations swirling around, up into the sky, and engulfing the Northern Hemisphere. The data comes from NASA’s Orbiting Carbon Observatory-2 (OCO-2) satellite, which was launched in 2014 to measure atmospheric CO2 at the regional scale.