GCOS works towards a world where climate observations are accurate and sustained, and access to climate data is free and open.


As the impacts of a warming climate become…

The Global Climate Indicators are a set of …


Where does the heat go?

The Earth Energy Imbalance (EEI), the difference between the amount of energy from the sun arriving at the Earth and the amount returning to space, serves as a fundamental metric to allow the scientific community and the public to assess how well

River discharge data are now available online

The Global Runoff Database of quality controlled “historical” mean daily and monthly discharge data has developed into the most comprehensive global river discharge data archive supporting climate-related programs and projects of the United Nation