CDIAC

Rationale Reference
Indicator codes: CSI 013 , CLIM 052
http://agage.eas.gatech.edu/data_archive/agage/gc-md/monthly/ for CH4, N2O, CO, H2, CFC-11, CFC-12, CH3CCl3, CCl4, CFC-113, and CHCl3. 

CDIAC

http://agage.eas.gatech.edu/data_archive/agage/gc-md/monthly/ for CH4, N2O, CO, H2, CFC-11, CFC-12, CH3CCl3, CCl4, CFC-113, and CHCl3. 


http://agage.eas.gatech.edu/data_archive/agage/gc-md/monthly/

Reference to other indicator initiative
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