On this week's ClimateCast Tom Heap is in west London to talk about the quality of the UK's waterways, something that's causing a public and political outcry across the country.

With his waders on, he meets the brains behind water quality monitors handmade by local residents which are helping to monitor pollution in the River Brent, including founder of Clean up the River Brent, Ben Morris.

Plus, he speaks to former punk icon Feargal Sharkey about fears for future water quantity and how much of a factor water will be in the next general election.

Podcast producer: Emma Rae Woodhouse
Field producer: Gemma Watson
Editors: Wendy Parker and Paul Stanworth