Natural disasters – such as tsunamis, earthquakes, cyclones and floods – are costly to society, in terms of both human destruction and financial losses. Governments ultimately bear the full cost…

Olivier Mahul |

The plight of refugees is in the news all the time, mostly as a result of war. But recently, I saw a post in Dot Earth, a New York Times blog, about a documentary called Climate Refugees. It…

David Lawrence |