BioMethane is not the cheapest solution to clean mobility but compared to hydrogen, its a bargain. BioMethane is truly carbon neutral, in some cases carbon negative. Most hydrogen today is not. BioMethane is safe to use, not explosive per se and non-toxic. Hydrogen is not safe to use, technically challenging, explosive and hard to handle. BioMethane can be used today with no fuss for a Smart car as well as an 18 wheeler. Those green folks should have the heebies jeebies now.