NOAA/ESRL Global CO2 for October, 2016:
Hit a new monthly high of 402.31 ppm, which was 3.71 ppm higher than October, 2015. This yr/yr increase of 3.71 ppm is the highest for any month in the NOAA/ESRL record.
The ten year change from October 2006 to 2016 was 22.47 ppm, the highest of any ten year period monthly comparison.
Perhaps some of this rate of increase is El Nino related, but these may be less connected than previously.