Besides this, an Australian research group just announced a way to get hydrogen out of saltwater without so much pollution as past processes...but certainly still more expensive than using fresh water.
Exxon planning largest hydrogen production facility in the world - UPI.com
Edit to note the complex is to be built at Baytown, TX.
Exxon planning largest hydrogen production facility in the world - UPI.com
Edit to note the complex is to be built at Baytown, TX.