Next week last year stayed around 408.5 ppm. At the moment the day-to-day changes are small, therefore an annual increase of slightly above 2 ppm is likely.
My Sunday evening weekly (and in addition today, monthly) CO
2 service.
Week beginning on December 1, 2019: 411.07 ppm
Weekly value from 1 year ago: 408.47 ppm
Weekly value from 10 years ago: 387.08 ppm
Last updated: December 8, 2019.
This is an annual increase of 2.6 ppm, more than I had expected last Sunday.
The month has finished and here is the
monthly average for November 2019:
November 2019: 410.27 ppm
November 2018: 408.02 ppm
Last updated: December 5, 2019The annual increase of 2.25 ppm is at the lower edge of values we saw this year.
Outlook:
Next week last year averaged at 409.3 ppm, which is a jump from this week last year by about 1 ppm. The daily values are on the rise, therefore an annual increase slightly above 2 ppm should be expected.