A platform converting green energy to hydrogen in Scheveningen, the Netherlands, August 2022
Piroschka van de Wouw / Reuters

If climate change is the challenge of the century, hydrogen could be the dark-horse solution. So far, it has received little attention compared with other options to reduce greenhouse gas emissions, such as solar or electric vehicles, but that is changing fast. Money and labor are flowing into hydrogen companies, projects, and infrastructure, almost all of them focused on producing hydrogen supplies that emit little to no carbon, thanks to rapid and profound technology and policy advances. Since 2020, developers have announced more than 150 new hydrogen production projects, now exceeding 250 gigawatts of new power production (roughly ten times all renewable power

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