Rising CO2 causes more than a climate crisis—it may directly harm our ability to think

As the 21st century progresses, rising atmospheric carbon dioxide (CO2) concentrations will cause urban and indoor levels of the gas to increase, and that may significantly reduce our basic decision-making ability and complex strategic thinking, according to a new CU Boulder-led study. By the end of the century, people could be exposed to indoor CO2 levels up to 1400 parts per million—more than three times today’s outdoor levels, and well beyond what humans have ever experienced.

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