in india and bangladesh in may and cost $3 billion in just a few days. it also forced more than a million people to evacuate. most of the countries on this list are richer nations, where it's easier to measure financial losses because people are more likely to have insurance. dr kat kramer is the report's author. she explained more about what she found. well, we looked at the top ten most expensive extreme weather events and occurrences that were climate—related this year, and i think it's important to say that they can't be directly ascribed to climate change, perhaps. but a number of them have been studied by attribution scientists. this is a new area of science that's looking at seeing how much more likely an extreme weather event is or how much more powerful an extreme weather event is because of human—caused climate change. so, we looked at the top ten in terms of the economic costs because, as you say, there is the data to do that. but we also looked at five