From Hong Kong’s tiny subdivided flats to the migrant crisis, this year’s photography and sustainability award shortlist explores the theme of space from all perspectives The winners will be announced at an exhibition in London in May 2017. See last year’s winners here



Main image: Migrants arrive by a Turkish boat near the village of Skala, on the Greek island of Lesbos. The Turkish boat owner delivered some 150 people to the Greek coast and tried to escape back to Turkey; he was arrested in Turkish waters. Photograph by Sergey Ponomarev for The New York Times Photograph: Sergey Ponomarev for The New York Times/2016 Prix Pictet