Of course, reaching that goal means overcoming some sizable challenges. Specifically, the initial high cost of fuel cell vehicles and hydrogen infrastructure, Hyzon Motors CEO Craig Knight tells IndustryWeek. "Fuel cell trucks need to be as competitive as diesel trucks and hydrogen needs to be as cheap as diesel," he says. "Big truck companies forecast that it could be possible in 20-30 years. We can't wait that long. We hope to shorten that to 5-7 years. It's challenging but think about how much carbon emissions could be eliminated if we can achieve it."