416.08 ppm CO2 PPM today.



Daily CO2

A Bellweather Indicator for Planetary Environmental Stability, Global Economic Security & Inter-Generational Sustainability

Jul. 23, 2021 416.08 ppm
Jul. 23, 2020 413.55 ppm
1 Year Change 2.53 ppm (0.61%)

Last CO2 Earth update: 2:35:02 AM on Jul. 24, 2021, Hawaii local time (UTC -10)

This table presents the most up-to-date, daily average reading for atmospheric CO2 on the planet.  Units = parts per million (ppm).  Measurement location = Mauna Loa Observatory, Hawaii. Source = NOAA-ESRL.




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