Hydrogen, the most abundant element in the universe, is increasingly viewed, along with electric vehicles, as one way to slow the environmentally destructive impact of the planet's 1.2 billion vehicles, most of which burn gasoline and diesel fuel.
Frazzled residents in a part of rural northwestern Oklahoma paralyzed by days of wind-whipped wildfires expressed fear a blaze could overrun their home Wednesday, as firefighters battling the deadly fires there and in Colorado, Kansas and New Mexico found some relief at the promise of easing of dangerous weather conditions.
