Natural disasters cost lives… and they cost a great deal of money, US$ 232 billion in 2008 alone. Nature Inc. finds out how much better off we are – and safer –  in places where natural barriers to disaster remain intact, where forested slopes prevent mudslides and flash floods and coral reefs and mangroves weaken tsunamis. Nature Inc. goes to Cuba, Haiti, Indonesia and Louisiana USA to find out how compelling the economic case is for investing in natural prevention.