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Nate McDowell from Squirrel Hill, an intern with Ecotone Renewables replants tomatoes grown at the "Seahorse," in Swissvale, Pa., on July 23, 2021. Pam Panchak/Pittsburgh Post-Gazette/TNS
PITTSBURGH—Ecotone Renewables, a startup by students and graduates of Carnegie Mellon University and the University of Pittsburgh, wants to change the way the world thinks about food waste—and it wants to use a seahorse to do so.
