Yale University published an article about the future impact of more storms like Sandy. Here are some excerpts (want the full article? here it is).
Hundreds of trillions of dollars of infrastructure, industrial and office buildings, and homes are increasingly at risk from intensifying storms and rising sea levels.
In New York city alone, the city’s buildings, transportation, and utilities utility infrastructures currently at risk from storm surges and flooding — an estimated $320 billion — will be worth $2 trillion by 2070, according to continuing studies by the Organization for Economic Cooperation and Development (OECD).
The OECD finds that total assets vulnerable to flooding and storm surges of just 10 of the world’s megacities could account for some 9 percent of the world’s GDP.