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Daily CO2

June 25, 2019:  413.80 ppm

June 25, 2018: 410.39 ppm

May CO2

May  2019:  414.83 ppm

May 2018:  411.30 ppm

April Temperature

2nd Hottest April since 1880:  2019

Coldest April since 1880:  1909

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