Proceedings of the National Academy of Sciences, Volume 123, Issue 13, March 2026. SignificanceC(sp2)–C(sp2) bonds are pivotal in pharmaceuticals, natural products, and functional organic/polymeric materials. Thus, developing robust, efficient methods to construct C(sp2)–C(sp2) linkages is an important objective in synthetic chemistry. …
Observations from the Little Bunker
Last updated: April 08, 2026 01:18 AM
Atmospheric CO₂
431.7 ppm
+18.3
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