Proceedings of the National Academy of Sciences, Volume 122, Issue 50, December 2025. In the United States, people of color are disproportionately and unjustly exposed to air pollution. Historically, environmental policy has emphasized aggregate emission reductions, yet major emission reduction scenarios do not sufficiently mitigate …
Observations from the Little Bunker
Last updated: December 19, 2025 03:16 AM
Atmospheric CO₂
427.2 ppm
+17.7
ppm/year
Atmospheric CH₄
1930.95 ppb
+-3.5
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year