Plant-based meats may be high tech, but the ideas behind them have been around for decades.

Meatless Burgers Are on Trend. Eating to Save the World Has a Long History.

Producer: Jill Rosenbaum
Editor: Anne Checler
Associate Producers: Sandra McDaniel and Victor Couto
More Americans than ever are seeking out alternatives to meat, convinced that consuming plant-based substitutes may help solve climate change. Today’s newest meatless burgers have the sizzle, smell and taste of the animal variety, but the idea has roots in a movement that took off in the 1970s with Frances Moore Lappé’s counterculture bestseller, “Diet for a Small Planet.”