November’s global average atmospheric #carbondioxide (CO₂) was about 420 parts per million — NASA: https://climate.nasa.gov/vital-signs/carbon-dioxide/ #ActOnClimate #KeepItInTheGround

NASA: https://twitter.com/nasaclimate/status/1608156256363057153?s=43&t=hovqlmRERSLabJCT3HwM9A

This is a roughly 50% increase since 1750 due to human activities, such as burning fossil fuels and land-use change

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