Julie Hamp, the CCO of Toyota North America, lost a sister-in-law to ALS last year, so for her the cause is personal. Instead of just dumping icy-cold water on her head, Hamp uses water from the FCV fuel cell vehicle parked next to her. Because, of course, a hydrogen fuel cell car emits nothing but water vapor.
Toyota didn't run a lot of hydrogen through the car to collect water, it just got enough to top off the ice bucket. Using the water emissions from a hydrogen vehicle in a creative way is not a new trick. Two years ago, the California Fuel Cell Partnership made the point that you can drink the emissions (just like Mercedes-Benz did earlier this year), but admitted that "fuel cells produce about the same amount of water as gasoline vehicle – about 1/3 cup for a full day of driving." Still, for a good cause, we'll accept the mix of tap water and "emissions."
Check out the video below, if you haven't had enough already.