Earlier discussion of the research: https://www.lesswrong.com/posts/pPZ27eZdBXtGuLqZC/what-is-up-with-carbon-dioxide-and-cognition-an-offer
Earlier discussion of the research: https://www.lesswrong.com/posts/pPZ27eZdBXtGuLqZC/what-is-up-with-carbon-dioxide-and-cognition-an-offer