As climate change supercharges floods and rainfall, the state’s water-adjacent landmarks are especially vulnerable.By Kiley BensePHILADELPHIA—Karen Young stood in a cavernous room perched on the edge of the Schuylkill River that was once a public swimming pool.
Observations from the Little Bunker
Last updated: February 24, 2026 10:22 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