Frito-Lay plans to deploy a fleet of more than 700 electric delivery vehicles in the US by the end of the year. Its first pilot Ford eTransit truck “arrived just in time for Earth Day” last year. To be clear, electric vehicles are much better for the climate than their gas-guzzling counterparts.

But EVs still churn up particulate pollution from the wear and tear of tires, brakes, and roadways. So even if big brands electrify their fleets, they’ll still need to think about how their operations affect the environment and public health. They can be more mindful of where they put up new warehouses, for example. Warehouses are magnets for truck traffic and pollution, which can be a nightmare for nearby communities.