The following submission statement was provided by /u/filosoful:

Hydrogen is touted as a wonder fuel for everything from transport to home heating — but greener and more efficient options are often available.

The problem is that hydrogen is not freely available. On Earth, it exists mostly in molecules bound to other elements, from which it must be extracted at huge energetic cost.

Policymakers should beware potential unintended negative consequences for both people and the planet from an overwrought dash for hydrogen.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/yxm3fo/overhyping_hydrogen_as_a_fuel_risks_endangering/iwpb8xw/