Proceedings of the National Academy of Sciences, Volume 122, Issue 46, November 2025. SignificanceThe oxidation–reduction behavior of iron under pressure in part controls the chemical processes occurring in the deep Earth. Large-scale first-principles calculations show that iron reverses its redox nature under core pressures, shifting from …
Observations from the Little Bunker
Last updated: November 30, 2025 04:25 AM
Atmospheric COâ‚‚
426.8 ppm
+18.1
ppm/year
Atmospheric CHâ‚„
1927.61 ppb
+2.73
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year