Scientists, entrepreneurs and federal officials are searching furiously for a carbon-free fuel they hope to find buried underground. The search is fueled by a recent and dramatic change in thinking
When it comes to renewable energy, hydrogen is hailed as a pivotal resource in the zero-carbon game plan. Hydrogen energy is accessible, produces lower greenhouse gas emissions and can.
As studies show far more natural hydrogen underground than believed, well-funded efforts to drill for the gas are underway around the globe. Boosters see a plentiful green replacement for fossil fuels, but skeptics say its large-scale use may not be practical or cost-effective.