WOULDN’T it be wonderful to have a way to cut the smogs that plague our cities and halt global warming at a stroke – all without changing our way of life and at no great cost. That is the promise of replacing carbon-based fuels with hydrogen to keep our cars running and the lights burning. Many governments have started to embrace the idea. But now a spate of studies is telling us what we should already know: there is no such thing as a panacea.
Those papers have pointed out that hydrogen itself increases global warming and could even harm the…
