Rising sea levels as a result of the melting of the polar ice caps promises to further extend the reach of giant waves smashing towards coastal settlements in the aftermath of quakes.
In Alaska and other high, cold places around the world, new research shows that mountains are collapsing as the permafrost that holds them together melts, threatening tsunamis if they fall into the sea.
Peter Dykstra and Host Steve Curwood discuss why climate change may be linked to tsunamis, and they also look at the "research whaling" claims that allow the commercial killing of whales in Japan. The two then recount some of the deadliest hurricanes in modern US history.
'Lost World' documentary: Singapore is dredging sand, and land, from Cambodia