Daily Average Mauna Loa CO2:

Times Standard (Eureka) - - FRONT PAGE -

Week be­gin­ning on Nov. 10, 2019: 410.25 ppm

Weekly value from 1 year ago: 408.91 ppm

Weekly value from 10 years ago: 385.76 ppm

Last up­dated: Nov. 22, 2019 Source: Na­tional Oceanic and At­mo­spheric Ad­min­is­tra­tion; Mauna Loa Ob­ser­va­tory has been mon­i­tor­ing C02 lev­els since 1958

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