Countdown: Our Last, Best Hope for a Future on Earth?, by Alan Weisman, is a fascinating proposal for saving the planet. Well received by both critics and general readers, it is been translated into 13 languages and won the Los Angeles Times Book Prize (2013), a prize in the non-fiction category at the Paris Book Festival (2013), the Nautilus Gold Book Award (2014) and the Global Media Award for best book (2014). His previous work, The World Without Us, was an international bestseller, translated into 34 languages and named best non-fiction book of 2007 by a number of publications. This talk makes clear the human race’s devastating influence on our planet.