Proceedings of the National Academy of Sciences, Volume 123, Issue 6, February 2026. SignificanceProjecting atmospheric nitrous oxide (N2O) abundance is critical for climate and ozone assessments. Research has focused on projecting the changing emissions of N2O from direct anthropogenic sources, the dominant cause of the recent growth. …
Observations from the Little Bunker
Last updated: February 24, 2026 10:22 PM
Atmospheric CO₂
429.9 ppm
+17.3
ppm/year
Atmospheric CH₄
1946.47 ppb
+6.49
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year