New Mexico's 'Earthships' offer unique model for living off the grid

This summer’s extreme heat and the demand for air conditioning are putting a big strain on the electricity grid in many parts of the nation. But for more than 40 years, a pioneering architect in New Mexico has been building a unique kind of home that can be heated and cooled without using any electricity at all. Special Correspondent Megan Thompson reports. Watch PBS News for daily, breaking and live news, plus special coverage. We are home to PBS News Hour, ranked the most credible and objective TV news show. Newsletters: https://www.pbs.org/newshour/subscribe PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts 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: TikTok:   / pbsnews   Twitter:   / newshour   Instagram:   / newshour   Facebook: http://www.pbs.org/newshour