Hydrogen fuel-cell vehicles produce only water vapor as emissions—water that could in theory be filtered and made potable. While that’s been the memorable party-trick of fuel-cell presentations over many years—well, that and some creative billboards—the lack of combustion gases being carried through the tailpipe creates a... Toyota claims the 2021 Mirai fuel-cell car cleans the air, calls it “minus emissions”
Hydrogen fuel-cell vehicles produce only water vapor as emissions—water that could in theory be filtered and made potable. While that’s been the memorable party-trick of fuel-cell presentations over many years—well, that and some creative billboards—the lack of combustion gases being carried through the tailpipe creates a...