LET’S CLEAR THIS UP: SOME YEARS, CO₂ LEVELS RISE MORE SLOWLY, BUT THEY ARE STILL RISING. CONCENTRATIONS REMAIN IN THE ATMOSPHERE FOR 300 TO 1,000 YEARS.
Based on the misinformation we are fed, we can be forgiven for thinking levels of CO₂ in the atmosphere are decreasing. They ARE NOT. They are increasing. Some years CO₂ rises more slowly than others, but the overall concentration is still going up. There was a reduction of U.S. emission in 2023 and 2024 but that ended in 2025. A reduction of emissions does not equal a reduction of existing levels. In addition to monstrous and growing AI power demands, the geopolitical situation has reversed the illusion of real progress.
MAY UPDATES: GLOBAL CLIMATE CATASTROPHES
The daily average concentration of atmospheric CO2 at Mauna Loa Observatory first exceeded 400 PPM on 10 May 2013. Now it’s 431 PPM.
The quantity of CO2 in the atmosphere hit a record high in April 2026. Carbon Dioxide levels averaged about 431 PPM (parts per million) over that month, according to data collected at NOAA’s Mauna Loa Observatory in Hawaii. The Trump administration is about to close the facility. further eroding climate science in the US.
The daily average concentration of atmospheric CO2 at Mauna Loa Observatory first exceeded 400 ppm on 10 May 2013.
In 1958, the observatory reported CO2 levels of 320 PPM.