RIO DE JANEIRO, BRAZIL - Paganini explained that green hydrogen is the name given to hydrogen resulting from a process of electrolysis in which water molecules separate the oxygen atom from those of this element, turning it into a flammable gas produced to be used as fuel.
It is called "green" because, in this case, electrolysis is produced with electricity from renewable energy sources, resulting in an industry with zero carbon emissions.
There is also gray and blue hydrogen, produced with electricity from fossil and natural gas energy sources, respectively, the latter being "more environmentally friendly than gray." However, the government . . .
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