Is there a reference for this? Sent from my iPhone On Nov 2, 2010, at 2:08 PM, "Dixon, John E. (CDC/ONDIEH/NCEH)" <gyf7 at cdc.gov> wrote: > Should other countries pay us, since CO2 coming into the USA (usual > westerly winds) is 387 ppm and leaving is LESS at 385 ppm (both > increasing)?