The former NAACP president had a contentious tenure at one of the nation’s oldest environmental organizations.By Lee HedgepethBen Jealous’ tenure at the Sierra Club has come to an end.
Observations from the Little Bunker
Last updated: February 28, 2026 12:22 PM
Atmospheric CO₂
429.9 ppm
+17.3
ppm/year
Atmospheric CH₄
1946.47 ppb
+6.49
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year