Proceedings of the National Academy of Sciences, Volume 122, Issue 46, November 2025. SignificancePlants are frequently subjected to injury, yet they possess remarkable ability to regenerate tissues or organs. Stem cells of vascular cambium produce xylem (wood) and phloem. When vascular cambium and the overlaying bark are removed because …
Observations from the Little Bunker
Last updated: November 30, 2025 04:25 AM
Atmospheric CO₂
426.8 ppm
+18.1
ppm/year
Atmospheric CH₄
1927.61 ppb
+2.73
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year