ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by David Guttenfelder @dguttenfelder | With a wind turbine standing tall on his family’s farmland, Brian Caltrider harvests corn near Adair, Iowa. Hundreds of wind turbines have been erected in Adair County since 2018, changing the rural landscape and generating welcome revenue for farmers. I crossed the U.S. in an electric car with writer @craigwelch to try to understand the future of energy for our story, “The Road to 2070.” Please have a look at the April 2020 issue of National Geographic, which marks the 50th anniversary of Earth Day. Check out Nat Geo's link in bio for more on this story.」4月22日 9時41分