“A broad ensemble of very rare, but extremely high impact, events have the potential to cause wide-area devastation. However, they are normally ignored in contingency plans, being written off as too unlikely, or too difficult to prepare for. This attitude, while understandable, adds to the risk as, although rare, these events will occur at some point: and it is as likely to be this year or this decade as it is to be hundreds of years into the future.
A report published last year looked in detail at the risks of such extreme events and made proposals for preparations that could be made to increase the chance of community and organizational survival.”
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