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Indy 500 waves green flag on sustainability with lofty goals

Tyrone Garrison plugs in a semi that is battery operated at the Indianapolis 500 auto race at Indianapolis Motor Speedway, Friday, May 20, 2022, in Indianapolis. (AP Photo/Darron Cummings)

Recycle containers are placed in the eating area at the Indianapolis 500 auto race at Indianapolis Motor Speedway, Friday, May 20, 2022, in Indianapolis. (AP Photo/Darron Cummings)

Renewable tires sit on the back of cart before the pit stop contest during at the Indianapolis 500 auto race at Indianapolis Motor Speedway, Friday, May 27, 2022, in Indianapolis. (AP Photo/Darron Cummings)

Race fans look at shirts that are made from plastic bottles during the final practice for the Indianapolis 500 auto race at Indianapolis Motor Speedway, Friday, May 27, 2022, in Indianapolis. (AP Photo/Darron Cummings)

Indy 500 waves green flag on sustainability with lofty goals