Recent Mauna Loa CO2
March 2023: 421.00 ppm.
Recent global CO2
January 2023: 419.31 ppm

The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

Up-to-date weekly average CO2 at Mauna Loa
Week starting on April 30, 2023: 423.96 ppm
Weekly value from 1 year ago: 420.18 ppm
Weekly value from 10 years ago: 399.74 ppm

The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.

Estimated Global Daily average CO2 trend
June 25, 2023: 419.15 ppm
Daily average CO2 at Mauna Loa
June 25, 2023: 422.20 ppm

The Global Monitoring Laboratory conducts research on greenhouse gas and carbon cycle feedbacks, changes in clouds, aerosols, and surface radiation, and recovery of stratospheric ozone.