I can't help but wonder if an Oxygen shortage is our next major challenge. | Hacker News

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bdamm on Nov 20, 2017 | parent | context | favorite | on: The World Is Running Out of Sand

I can't help but wonder if an Oxygen shortage is our next major challenge.

eitland on Nov 20, 2017 [–]

Along with a silicon shortage then?;-)

For anyone wondering: a lot of "rock" and "sand" is silica AKA silicon dioxide.

When it comes to oxygen we also have water which contains oxygen.

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