Daily Av­er­age Mauna Loa CO2:

Times Standard (Eureka) - - FRONT PAGE -

Week be­gin­ning on May 17, 2020: 416.97 ppm Weekly value from 1 year ago: 414.72 ppm Weekly value from 10 years ago: 393.46 ppm Last up­dated: May 26, 2020

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