Disaster Reduction and Sustainable Development: Understanding the Links between Vulnerability and Risk to Disasters Related to Development and Environment



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Resilience / resilient

The capacity of a system, community or society to resist or to change in order to obtain an acceptable level in functioning and structure. This is determined by the degree to which the social system is capable of organizing itself, and the ability to increase its capacity for learning and adaptation, including the capacity to recover from a disaster.


Risk

The probability of harmful consequences, or expected loss (of lives, people injured, property, livelihoods, economic activity disrupted or environment damaged) resulting from interactions between natural or human-induced hazards and vulnerable/capable conditions. Conventionally, risk is expressed by the equation Risk = Hazards x Vulnerability / Capacity.

Beyond expressing a probability of physical harm, it is crucial to appreciate that risks are always created or exist within social systems. It is important to consider the social contexts in which risks occur and that people therefore do not necessarily share the same perceptions of risk and their underlying causes.

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