ナショナルジオグラフィックのインスタグラム(natgeo) - 4月22日 07時02分

Photo by David Guttenfelder @dguttenfelder | The furnaces at SSAB America’s steel mill in Montpelier, Iowa, are electric—and by 2022, the company says, they’ll be heated by renewable energy. The iron and steel industry, which usually relies on coal, accounts for about 7 percent of global carbon dioxide emissions. Heavy industry is especially hard to wean off the cheap heat that fossil fuels provide.
I crossed the U.S. in an electric car and 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.

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