Proceedings of the National Academy of Sciences, Volume 123, Issue 3, January 2026. SignificanceA common premise in the social and behavioral sciences is that ingroup love goes together with outgroup hate. To test this premise, we studied whether ingroup prosociality goes together with less or more outgroup prosociality. Across six …
Observations from the Little Bunker
Last updated: January 27, 2026 08:12 PM
Atmospheric CO₂
428.6 ppm
+17.4
ppm/year
Atmospheric CH₄
1940.59 ppb
+-0.24
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year