Supercritical CO2 Is Useful, Not Miraculous And Has Clear Risks

<p>There&rsquo;s a lot to unpack here, so lets head back to the 19th century to figure out what the heck supercritical CO2 is. No, lets head back further to the ancient Greeks. And to be clear, it&rsquo;s entirely probable that the ancient Chinese and ancient Arabians figured this out independently and possibly before Europeans did, but English-language histories were written by Europeans, so we&rsquo;ll live with this version of the story. (If anyone has references to non-European scientists and phases of matter, please let me know. I love good parallel invention stories.)</p> <p>Humans have known pretty much forever that water and ice are the same thing, with the difference between them being heat. Summer and winter with icing and melting are pretty obvious phenomena, and humans have been smart enough to remember and figure things out for probably 450,000 years. Gases took a lot longer to understand as another state of matter. The Greeks knew this and mistakenly thought that with water being able to exist in three states, everything in the universe was probably made of it.</p> <p><a href="https://medium.com/the-future-is-electric/supercritical-co2-is-useful-not-miraculous-and-has-clear-risks-e46083d4eb46"><strong>Learn More</strong></a></p>