Climate TrendsHome › Greenhouse gases › Carbon dioxide (CO₂)
Carbon dioxide (CO₂) in 2023 (global mean)
Annual mean419.35 ppm
vs previous year+2.27 ppm
Rank of increase13 / 46
Max − min within year4.72 ppm
By month
| Month | Concentration | vs same month last year |
|---|---|---|
| Jan | 419.37 ppm | +2.19 |
| Feb | 419.65 ppm | +2.01 |
| Mar | 419.98 ppm | +1.83 |
| Apr | 420.48 ppm | +1.90 |
| May | 420.54 ppm | +2.09 |
| Jun | 419.56 ppm | +2.13 |
| Jul | 417.92 ppm | +2.25 |
| Aug | 416.78 ppm | +2.38 |
| Sep | 417.17 ppm | +2.55 |
| Oct | 418.84 ppm | +2.71 |
| Nov | 420.40 ppm | +2.56 |
| Dec | 421.50 ppm | +2.59 |
+2.39 ppm
+2.46 ppm
+2.37 ppm
+2.26 ppm
+2.38 ppm
+2.27 ppm
+3.44 ppm
+2.83 ppm
Bars: yearly increase in the surrounding years. NOAA GML global monthly means.