We are living in an age of loss: the sixth mass extinction. Following this year's shocking report that the planet has lost half its wildlife in the past 40 years, and the 2018 Remembrance Day for Lost Species, I wrote this piece on art and disappearance for Dark Mountain's 'The Vanishing' section. Here we look not only to extinction – the deaths of entire species – but to the quieter extirpations and losses that are steadily stripping our world of its complexity and beauty. How do we,...