Letter: We need to keep improving the efficiency of AI development, but we can also harness it to help accelerate the green transition, writes Dr Will Cavendish
Letters: A Guardian survey of leading climate scientists revealed their despair about the future. John Coghlan, Rachael Orr, Natalie Bennett, Dr Robin Russell-Jones and Gregory Johnson find reasons to keep on fighting
Letter: Scents are often used to entice customers into retail outlets, but research has shown that evoking them with an image has a similar effect, writes Zachary Estes
Vermeer’s Girl With a Pearl Earring, Rembrandt’s triangle and real art’s appeal