#GPT-4 Conversation #1096201491351601262
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Historically, CO2 levels have fluctuated between 180 parts per million (ppm) during ice ages and 280-300 ppm - say who?
Historically, CO2 levels have fluctuated between 180 parts per million (ppm) during ice ages and 280-300 ppm during interglacial periods. These values are supported by ice core records and numerous scientific studies conducted by climate researchers and scientists. Some notable organizations studying and sharing this information include the Intergovernmental Panel on Climate Change (IPCC), National Oceanic and Atmospheric Administration (NOAA), and the National Aeronautics and Space Administration (NASA).
was their studies peer reviewed?