London, UK. 5th May, 2021. Burning Pink London Mayoral candidate Valerie Brown (c) takes part in a March On The Motorway event organised by Burning Pink to coincide with the eve of the London Mayoral election. Burning Pink is a radical political party campaigning for rapid action to combat the climate emergency through the setting up of citizens assemblies. The activists marched from a rally at St Pancras Church to the Westway, where they were intercepted by the police.