A New York Times Editors' Choice A Next Big Idea Club and Sierra Magazine Must-Read Book A Behavioral Scientist’s Notable Book of 2024 A Financial Times Best Summer Book A Bookshop Most Notable Science Book of 2024 A deeply reported, eye-opening book about climate change, our brains, and the weight of nature on us all. The march of climate change is stunning and vicious, with rising seas, extreme weather, and oppressive heat blanketing the globe. But its effects on our very brains constitute a public-health crisis that has gone largely unreported. Based on seven years of research, this book by the award-winning journalist and trained neuroscientist Clayton Page Aldern, synthesizes the emerging neuroscience, psychology, and behavioral economics of global warming and brain health. A masterpiece of literary journalism, this book shows readers how a changing environment is changing us today, from the inside out. Aldern calls it the weight of nature. Hotter temperatures make it harder to think clearly and problem-solve. They increase the chance of impulsive violence. Immigration judges are more likely to reject asylum applications on hotter days. Umpires, to miss calls. Air pollution, heatwaves, and hurricanes can warp and wear on memory, language, and sensory systems; wildfires seed PTSD. And climate-fueled ecosystem changes extend the reach of brain-disease carriers like mosquitos, brain-eating amoebas, and the bats that brought us the mental fog of long COVID.