[cicero2k]

Where does the hydrogen come from?

Most likely, from natural gas, in order to be cost effective.

But guess what?

Obama's EPA is seeking to curb methane pollution, thereby natural gas production; by a large amount.

Isn't government grand?

By the time they hammer us down with regulations, the planet will begin a cooling cycle.

A new crisis to be managed.

[SpeakerToAnimals]

Most likely, from natural gas, in order to be cost effective.

So where did the carbon go? If they tell me it is vented as CO2 then my SVT Cobra is a hybrid. It burns gas and rubber. And vents CO2 and water out the tailpipe.