“Completely surprising” discovery based on ancient pollutants suggests mining and smelting continued apace for centuries
Observations from the Little Bunker
Last updated: March 13, 2026 10:18 PM
Atmospheric CO₂
429.6 ppm
+17.2
ppm/year
Atmospheric CH₄
1945.85 ppb
+8.44
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year