Climate change and its impacts is of great concern to humanity and is one of the most serious problems facing sustainable development worldwide. Through the network of National Meteorological and Hydrological Services of its Members, WMO plays an important role in weather and climate observation and monitoring, understanding of climate processes, the development of clear, precise and user-targeted information and predictions and the provision of sector-specific climate services, including advice, tools and expertise, to meet the needs of adaptation strategies and decision-making.