About this website

The World Meteorological Organization (WMO) is the United Nations specialized agency responsible for promoting international cooperation on weather, climate, water and related environmental issues. Its work supports the protection of lives and livelihoods, informed decision-making and coordinated global action on climate change.

WMO’s annual State of the Global Climate report provides an authoritative overview of the condition of the Earth’s climate system. It brings together observations from international monitoring networks to assess key indicators such as greenhouse-gas concentrations, global temperature, ocean heat, sea level, glaciers and sea ice.

This website is a companion to the report. It provides access to the latest available versions of selected global climate indicators, helping users explore the evidence behind the report’s main findings.

The indicators offer a broad and interconnected view of climate change. Rising greenhouse-gas concentrations alter the Earth’s energy balance, warming the atmosphere and ocean. Ocean warming and melting land ice then contribute to sea-level rise and other changes across the climate system.

Each indicator may draw on several independent datasets. Differences between datasets help illustrate the level of scientific uncertainty. The figures are updated at least once a year, while some datasets are updated more frequently.

For each figure, users can download the visualization in PNG, PDF or SVG format, as well as the underlying data in CSV format. Additional information and related indicators are available through the Read more links.

Contact us

For questions about the climate indicators presented on this website, data downloads or technical issues, please contact:

Climate Indicators Team
Email: cransom@wmo.int

WMO headquarters

World Meteorological Organization
7 bis, avenue de la Paix
CH-1211 Geneva 2
Switzerland

General enquiries: wmo@wmo.int
Telephone: +41 22 730 81 11
Website: wmo.int