Experts Meeting on developing the WMO guidelines on the use and interpretation of climate change projections

The WMO Commission for Weather, Climate, Water and Related Environmental Services and Applications (SERCOM) established the Standing Committee on Climate Services (SC-CLI). In the previous intersessional period, the SC-CLI Expert Team on Climate Services Information System Operations (ET-CSISO) lead the development and implementation of standardized and user-targeted approaches for the systematic generation and exchange of climate data, monitoring, prediction, and projection products that are required for the operational functioning of the Climate Services Information System (CSIS) at global, regional and national levels.  One of the remaining deliverables of the ET-CSISO is the development of the WMO Guidelines to facilitate the use and interpretation of climate change projections products into regional and national levels climate services delivery chains. Many stakeholders, policymakers and communities are interested in climate change information to guide mitigation plans, adaptation strategies and climate risk management. However, climate change projections are conditional on the evolution of concentrations of greenhouse gases, aerosols and other atmospheric constituents, and subject to uncertainty. The development of these guidelines is therefore crucial to provide guidance and standards and share good practices in the production, interpretation and use of regional and national climate change projections, including the characterization of uncertainties for applications and decision-making.