Climate Risk and Early Warning Systems Initiative The Climate Risk and Early Warning Systems (CREWS) initiative aims to significantly increase the capacity for Multi-Hazard Early Warning Systems. These systems effectively generate and communicate impact-based early warnings, delivering risk information for hazardous hydrometeorological and climate events. They protect lives, livelihoods, and property in more than 50 Least Developed Countries (LDCs) and Small Island Developing States (SIDS). Many countries have strengthened their Multi-Hazard Early Warning Systems by enhancing hydro-meteorological warning services and improving emergency plans and operations. The countries that have successfully built the systems benefit from a dramatic reduction in deaths related to weather extremes. The capacity of implementing early warning systems in different countries and regions remain highly varied. Some LDCs and SIDS are particularly susceptible to weaknesses in their ability to issue crucial warnings to national and local authorities and resi