In the race to find a sustainable alternative to fossil fuels, so-called "white hydrogen" is a very attractive prospect. It occurs naturally, and the only byproduct of burning it is water. Historically, however, climate scientists have not been very interested in white hydrogen as a potential ally in the fight against climate change: it has a reputation for being difficult to source and even trickier to scale. According to a recent study, however, that may be about to change.
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