From Derek Langley, Cambridge, UK
I was heartened by your report on the launch of Extinction Rebellion (10 November, p 4). In the face of government intransigence, I believe this climate protest group is the planet's best, last hope, and I would encourage all your readers to get involved. For my part, I am proud to say that I have been arrested twice for standing up for the future of my grandchildren and all life on Earth.
