To win the climate war, you first need to win the climate argument. For many years, Sadiq wasn't fully aware of the dangers posed by air pollution, nor its connection with climate change. Then, aged 43, he was unexpectedly diagnosed with adult-onset asthma - brought on by the polluted London air he had been breathing for decades.

Scandalised, Sadiq underwent a political transformation that would see him become one of the most prominent global politicians fighting (and winning) elections on green issues. Since becoming Mayor of London in 2016, he has declared a climate emergency, introduced the world's first Ultra-Low Emission Zone, and turned London into the first-ever 'National Park City'. Now, Sadiq draws on his experiences to reveal the seven ways environmental action gets blown off course - and how to get it back on track.

'A warm, optimistic, urgent call for change' Sathnam Sanghera, author of Empireland

'Breathe is a breath of fresh air, offering an antidote to cynicism and demonstrating the power of a politics that aims to bring people together in the search for solutions.' Observer

'A rousing and thoughtful investigation into the politics of the climate crisis - and the path forward' Independent