<iframe src="http://www.npr.org/player/embed/327199147/327199148" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
NASA is preparing to launch a new satellite to observe carbon dioxide from space. The satellite could revolutionize our understanding of where this greenhouse gas comes from and where it goes.
NPR thanks our sponsors
Become an NPR sponsor