How Nature Works - Season 1 Episode 4 Waterworlds

In this, the final episode, we follow water on a journey that will take us across the world – from the remote mountain streams, via luscious wetlands and swamps, to coral reefs and the deep ocean. We begin high in the mountains of Iceland, in the North Atlantic. We then travel across the world to South America, to the world’s greatest wetland – The Pantanal.