Proceedings of the National Academy of Sciences, Volume 122, Issue 25, June 2025. SignificanceWhen could scientists have first known that fossil fuel burning was significantly altering global climate? We attempt to answer this question by performing a thought experiment with model simulations of historical climate change. We assume …
Observations from the Little Bunker
Last updated: August 18, 2025 04:13 PM
Atmospheric COâ‚‚
425.4 ppm
+18.4
ppm/year
Atmospheric CHâ‚„
1934.91 ppb
+9.11
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year