Perhaps not inherently clean, but even in the worst case they're wildly more efficient than their standard ICE cousins, worst case scenario you're getting an eq

Perhaps not inherently clean, but even in the worst case they're wildly more efficient than their standard ICE cousins, worst case scenario you're getting an equivalent of 36 mpg, best case scenario 112 mpg. A power plant of any variety is many times more efficient than your car engine. http://www.ucsusa.org/clean-vehicles/electric-vehicles/emissions-and-charging-costs-electric-cars#.WVUx_I9FyUk http://www.ucsusa.org/clean-vehicles/electric-vehicles/emiss... Given that power grids everywhere are turning more towards renewable energy, this efficiency will only grow. The cleaner the grid, the cleaner the stuff that runs on the grid. As for Hydrogen, lack of infrastructure is a major issue, on the production side as well as distribution. Producing hydrogen from natural gas produces CO2, producing it from water is slow and requires electricity, once again you're tied to the grid. There are further issues, found a good list of them here: https://cleantechnica.com/2016/06/10/hydrogen-fuel-cell-cars-not-competitive-hydrogen-fuel-cell-expert/ https://cleantechnica.com/2016/06/10/hydrogen-fuel-cell-cars...