Proceedings of the National Academy of Sciences, Volume 122, Issue 50, December 2025. SignificanceImpacts of climate change, such as flooding, drought, and fires, are already affecting millions of people worldwide. To mitigate and adapt to these impacts, we need climate information that: 1) is usable and used by decision-makers, and 2) is …
Observations from the Little Bunker
Last updated: December 18, 2025 08:15 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