• Daniel Quinn@lemmy.ca
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    15 hours ago

    I had the same reaction until I read this.

    TL;DR: it’s 10-50x more efficient at cleaning the air and actually generates both electricity and fertiliser.

    Yes, it would be better to just get rid of all the cars generating the pollution in the first place and putting in some more trees, but there are clear advantages to this.

    • lightnsfw@reddthat.com
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      2 hours ago

      How long does it take to break even from the pollution and electricity spent to make and install these?

    • A_norny_mousse@feddit.org
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      14 hours ago

      I appreciate Rebecca Watson’s opinion. Watched the 6min video, now convinced 👍

      Also learned a new term: kneejerk cynicism

    • FarceOfWill@infosec.pub
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      14 hours ago

      It provides fertilizer but needs “some food”.

      How much food and what is it?

      Typically for aquariums you have to feed these things fertilizer so it seems odd

      • rumba@lemmy.zip
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        1 hour ago

        It’s just some circle of life stuff, fertilizer, carbon dioxide, light in, The algae produces more algae. It loads up on a bunch of carbon, some of the bloom dies off, by removing it, you take the carbon with it along with some of the fertilizer components. You add a little more fertilizer in and the algae blooms more and sucks up more carbon dioxide.