Humans Are Causing a Larger Impact on the Planet than an Asteroid Impact or Flood Basalt

Posted on Categories Discover Magazine

Volcanic plume from Soufriere Hills on Montserrat, see from the ISS on October 11, 2009. Image: NASA.

Carbon dioxide! Little did we realize 100 years ago how this simple gas would become such a cultural lightning rod. Yet, here we are, battling what might be an existential fight that is focused on how much carbon dioxide humans pump into Earth’s atmosphere. It isn’t a little bit, either. No, humans might be now be the gold standard in carbon dioxide emissions in the history of the planet.

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