The Shadow Energy Minister has transformed her party's approach to climate policy.

In this extended conversation, Claire Coutinho sets out what changed her mind on net zero, a shift that has brought her into fierce debates with her opposite number, Ed Miliband.

She also shares her feelings about what she calls a rising "ethno-nationalism" on the right of British politics, as well as her reaction to her colleague Robert Jenrick's comments about Birmingham.

Nick asks how she ended up being sacked by Nigella Lawson, and sets up a future dinner party with Miliband.

Producer: Daniel Kraemer