Millions of American remained without power in frigid temperatures Tuesday as the U.S. continues to grapple with the effects of a major storm. The demand for energy is taxing power grids, most significantly in Texas. Stephanie Sy speaks with Michael Wara, director of the Climate and Energy Policy program at the Stanford University Woods Institute for the Environment, to learn more.

Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG
Find more from PBS NewsHour at https://www.pbs.org/newshour
Subscribe to our YouTube channel: https://bit.ly/2HfsCD6

Follow us:
Facebook: http://www.pbs.org/newshour
Twitter: http://www.twitter.com/newshour
Instagram: http://www.instagram.com/newshour

Subscribe:
PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts
Newsletters: https://www.pbs.org/newshour/subscribe