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Solar-powered device captures carbon dioxide from air to make sustainable fuel (techxplore.com)
submitted 2 years ago by to c/technology@lemmy.world
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[–] 1 point 2 years ago (1 child)

Lol, how is this different then hydrogen for example? Its renewable if just carbon dioxide is consumed during generation

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  • [–] 1 point 2 years ago* (1 child)

    Hydrogen fuel isn’t really renewable, even if the PR agents of companies creating it tell so.

    Edit: at fact check, I found this, maybe there is a way after all:

    https://youtu.be/ISuUlc8widc

    To your comparison: Hydrogen only releases water if burned.

    And getting CO2 out of air is very resource intensive and we need to pull a lot CO2 out, if the air to get back to “normal” levels. We can not afford to put any CO2 back into the atmosphere, after the hard work getting it out.

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  • [–] 1 point 1 year ago

    Hydrogen only releases water when burned? Hydrogen is always used with oxygen to create water and power? Its a chemical fact. It is renewable, the power generation around that to create the hydrogen also needs to be renewable ofcourse like solar or wind. But the creation and use of hydrogen is a perfect chemical cyclus

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