The need to act now to avoid catastrophic climate change | Letters

Gwen Harrison explains why she has become a law-breaker and Sue Tytler suggests other ways of saving the worldOn Monday last week I was arrested for gluing myself to the Department for Business, Energy and Industrial Strategy in London. On Saturday I risked further detention by illegally occupying Lambeth Bridge, along with hundreds of others, as part of Extinction Rebellion’s campaign of mass civil disobedience (Report, 19 November). Why?Scientists warn that the sixth mass extinction is n