Every day the record is broken.
Jan. 16, 2025 427.67 ppm
Jan. 16, 2024 422.83 ppm
1 Year Change 4.84 ppm (1.14%)
Every year the molar concentration of atmospheric CO2 grows by about 1%. The Arctic sea ice extent on the mid-September minimum drops by about the same amount. Is it 'alarmist' to think there might be a correlation?