The United Nations International Strategy for Disaster Reduction (UNISDR) and consultancy PwC warned large multinationals' dependencies on international supply chains, infrastructure and markets poses a systemic risk to 'business as usual'.

As annual economic losses from reported natural hazards were up from $10bn in 1975 to $400bn in 2011, IBTimes UK takes a look at the world's costliest natural disasters since 1980.

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