Proceedings of the National Academy of Sciences, Volume 122, Issue 51, December 2025. SignificanceEstradiol, the primary estrogen produced by the ovaries, has long been thought to influence emotional functioning in women. We predicted that cyclical fluctuations in estradiol might exacerbate neural responsivity to threat among women with a …
Observations from the Little Bunker
Last updated: December 25, 2025 02:10 PM
Atmospheric CO₂
427.2 ppm
+17.9
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