Whenever there’s an extreme weather event, from a hurricane to a record drought, the question always arises: Is it climate change?

MIT climate scientist Kerry Emanuel told Here & Now's Robin Young that it's hard to know for sure, but it is clear that as coastal waters warm up, storms will carry more rain, due to the added water vapor.

Listen to the interview...

This NOAA satellite image taken on Monday shows Hurricane Sandy off the Mid
Atlantic coastline moving north. (AP/NOAA)