UK's Met Office carbon dioxide forecast for 2020
Mauna Loa Observatory measured 415.79 parts per million of CO2 in the atmosphere on January 21, the highest ever daily average.
The UK's Met Office forecasts that the annual average CO2 concentration at Mauna Loa will be 414.2 ± 0.6 ppm. For the first time, monthly CO2 levels will exceed 415 ppm (during spring and summer) and will remain above 410 ppm for the entire year. Forecast monthly mean CO2 will peak at 417.4 ppm in May.
The Met Office forecasts that, at global level, the annual rise in CO2 concentration is expected to be relatively large and similar to last year's due to 2020 due to emissions from fossil fuel burning, land use change and cement production and a continuation of the temporary weakening of the land carbon sink.
This accelerates this year's annual CO2 rise by about 10%, with between 1% and 2% due to 2019/20 Australian bushfires.
Monthly Average Mauna Loa CO2