David Wallace-Wells, the author of new book The Uninhabitable Earth, depicts a world ravaged by climate chaos. India Rakusen talks to the author about why he thinks we are underestimating the impact climate change will have on the environment. Plus: the Guardian’s Helen Pidd on the consequences that Brexit uncertainty is having on the north of England. To support The Guardian’s independent journalism, visit theguardian.com/todayinfocus/support