New research predicts that coastal regions face massive increases in damages from storm surge flooding over the 21st century – to $100 trillion annually, more than the world’s entire economic product today. According to a study published in the Proceedings of the National Academy of Sciences, global average storm surge damages could increase from about $10-$40 billion per year today to up to $100,000 billion per year by the end of century, if no adaptation action is taken.