We speak to Jemima Hartshorn, founder of Mums for Lungs, about the problem of air pollution, what we can do to tackle it, and why there are reasons to be hopeful.

The Climate Emergency can often seem distant and detached. A story on our screens from far-off shores. But what do you do when it turns up on your doorstep?

This is the question Mums for Lungs began to ask in 2017. They’re a grassroots organisation from Brixton, campaigning for clean air for everyone.

This podcast is part of '400 Parts Per Million', an ecological arts project by Theatre in the Rough, supported by Arts Council England and the PH Holt Foundation.

Find out more at http://400.earth