Call for emergency action to limit global temperature increases, restore biodiversity and protect health - Nicholas J Talley; Fiona Godlee; Lukoye Atwoli; Thomas Benfield; Raffaella Bosurgi; Richard Horton; Carlos Augusto Monteiro; Kirsten Patrick; Peush Sahni; Abdullah H Baqui; Stephen Hancocks; Laurie Laybourn-Langton; et al. (BMJ Open Gastroenterology)