This piece appears as the Foreword in the new book ‘A Guide to Eco-Anxiety: How to protect the planet and your mental health’ by Anouchka Grose, published 23rd June 2020. In his ‘Motto to the Svendborg Poems’ published in the spring of 1939, Bertolt Brecht wrote ‘In the dark times, will there also be singing? Yes, there will also be singing, about the dark times.’ As a climate activist for the last quarter of a century those words speak to…