Pollutants plucked from air with copper

[ExpandMyMind]

In an accidental discovery, chemists have stumbled on a catalyst that strips only carbon dioxide from the air — ignoring oxygen — and converts it into a useful compound.

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maybe one day this technique, once refined, could be used to help combat the pollution we have in cities and around industrial complexes.

[questionmark]

If it costs any money it won't be used...especially not if it is the money of big oil and big coal.