Proceedings of the National Academy of Sciences, Volume 122, Issue 35, September 2025. SignificanceChina has implemented stringent Clean Air Action (CAA) policies over the past decade, yet the effectiveness of controlling key black carbon (BC) sources—aerosols that are harmful to both the climate and health—remains unclear. Using a decade-…
Observations from the Little Bunker
Last updated: October 16, 2025 02:57 AM
Atmospheric CO₂
424.4 ppm
+18.2
ppm/year
Atmospheric CH₄
1933.54 ppb
+12.29
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year