Climate Data Catalogue

Climate Indicators

Home Climate Indicators
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, and Arctic & Antarctic sea ice extent. Additional indicators are usually assessed to allow a more detailed picture of the changes in the respective domain.
 
Listed datasets with a green checkmark icon have been assessed.
 
Graphics scheduled to be updated starting June 25th 2023
Surface Temperature

Global mean temperature anomalies

Red: values per year (Jan-Dec); violet: 5-year running averages

Anomalies are relative to 1850-1900

 

Temperature