https://gml.noaa.gov/ccgg/trends/gl_trend.html

This markets closes at 11:59 EST on Dec 30 - may extend close time if I think appropriate. Want to give you guys a good chance to make a educated decision.

This market will resolve once they have updated the daily ppm. Link in chat if I don't notice and I'll resolve asap.

Resolves yes if global Co2 is higher on Dec 30 than Dec 29

Resolves no if global Co2 is same or lower.