Proceedings of the National Academy of Sciences, Volume 122, Issue 39, September 2025. SignificanceThe period between roughly 55 and 42 ka in Eurasia witnessed considerable biocultural changes, including the demic replacement of local Neanderthal populations by dispersingHomo sapiensgroups. Once thought to be a rapid, monolithic process, …
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