Community-based Early Warning Systems: Key Practices for DRR Implementers
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Natural hazards, and their impacts on affected populations, can vary in time and space. Natural hazards can be either sudden or slow onset, with both having the potential to devastate a community, country or region. Sudden onset hazards are those that happen as the result of a single event with little to no warning, such as tsunamis and earthquakes, and they limit the ability of communities and institutions to react. Early warning systems (EWS) are central to limiting the loss of lives and livel ihoods as a result of hazards and disasters. The present brief will demonstrate how EWS has evolved from a centralized process to becoming a system that blends technology and local knowledge and experiences to enhance complementarity and become more people-centred, and therefore have a greater impact on the ground.