WMO uses a list of 7 state-of-the-climate indicators that are based on the 54 Global Climate Observing System (GCOS) Essential Climate Variables, including surface temperature, ocean heat content, atmospheric carbon dioxide (CO2 ), ocean acidification, sea level, glacier mass balance and Arctic and Antarctic sea ice extent. Additional indicators are usually assessed to allow a more detailed picture of the changes in the respective domain.
These include in particular – but are not limited to – precipitation, GHGs other than CO2, snow cover, ice sheets, extreme events and climate impacts. The Dashboard below provides graphics for the above mentioned variables. Please click on the individual tabs to view the graphics, and click on the link below the graphs for access to the data. The graphs of climate indicators that have been assessed are marked with a green checkmark.