 
[Thomas] Wood, a professor of chemical engineering at Texas A&M, successfully tweaked a strain of E. coli to get it to produce 140 times more hydrogen than it does naturally.
Wood is “is already confident of its potential to power the next generation of homes and vehicles.”
Genetic engineering is a) inevitable and b) quite obviously producing useful products. Will there be frankenmutations that escape and morph in the wild into something unexpected and not so useful? Dunno, but a tweak like this that produces enormous amounts of hydrogen could be a boon to the widespread adoption of fuel cells.