The USA Pavilion included a 7,200-sq.-ft. vertical farm. (Photo by Saverio Lombardi Vallauri)

Rick Pickering has something to say. The California Exposition and State Fair CEO recently traveled to Milan, Italy, to speak at World Food Week, part of Expo Milano 2015: Feeding the Planet, Energy For Life.

He was one of 22 million people who went to Expo Milano 2015, May 1–Oct. 31, in Milan, Italy, to continue the global conversation about food.

“It was very much a world&rsqu...

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