Proceedings of the National Academy of Sciences, Volume 122, Issue 26, July 2025. SignificanceTrees play key roles in terrestrial ecosystems but are sensitive to large climatic changes. Our work quantifies end-of-century climate change exposureâshifts to speciesâ currently unoccupied climate zonesâfor 32,089 tree species globally. âŚ
Observations from the Little Bunker
Last updated: January 14, 2026 06:19 AM
Atmospheric COâ
428.7 ppm
+18.1
ppm/year
Atmospheric CHâ
1940.59 ppb
+-0.24
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year