Proceedings of the National Academy of Sciences, Volume 122, Issue 41, October 2025. SignificanceHydrogen (H2) is critical for energy decarbonization. Previous H2research has overlooked key dynamics in H2supply and demand. Our study reveals that the H2supply mix is crucial for greenhouse gas (GHG) mitigation, with biomass-based H2…
Observations from the Little Bunker
Last updated: October 16, 2025 04:11 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