Planes mimicking migrating geese to save energy. Aviation fuel made of cooking oil or downed timber waste. Aircraft wings that can change shape during flight to maximize efficiency. These are some of the ideas Delta Air Lines thinks could help it reach its 2050 net zero emissions goal, outlined during the Atlanta company's appearance at the CES tech show in Las Vegas this week, also billed as the start to its 100th year celebration. "For us, it's just become part of the business.

Anna Erickson, Woodruff Professor in the George W. Woodruff School of Mechanical Engineering and the Daniel Guggenheim School of Aerospace Engineering, spoke with Marketplace’s Meghan McCarty Carino about the push to revive the nuclear energy sector in a recent Marketplace Podcast.