A fuel that emits nothing but water almost sounds too good to be true at a time when carbon-reduction efforts across the globe have reached a fevered pace. But at a simple level, that's the promise of hydrogen.
An actual transition to hydrogen is far more complicated.
I wanted a better understanding of the hope and hype, so I traveled to the high desert of New Mexico, where modern-day efforts to develop transportation-related applications for hydrogen began at Los Alamos National Laboratory roughly a half-century ago.
That visit kicked off a yearlong exploration of hydrogen, which culminates in a special report this week that includes the following coverage:
■ Electric vehicles have captured the attention of the global auto industry and the federal government. But scientists at Los Alamos and other industry leaders make the case that hydrogen is a necessary complement to EV…