Why U.S. lawmakers failed to act on climate change long ago

This coming week, The New York Times Magazine will devote an entire publication of the Sunday magazine to the issue of climate change. The single-themed edition called "Losing Earth," will look at scientific discoveries and decisions made on climate change from 1979 to 1989 through the story of a former NASA scientist. Nathaniel Rich, who authored the edition, joins Hari Sreenivasan for more.