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.

How we feel about climate change matters deeply; but this is a book about much more than climate anxiety. As Aldern richly details, it is about the profound, direct action of global warming on our brains and behavior—and the most startling portrait yet of unforeseen environmental influences on our minds. From farms in the San Joaquin Valley and public schools across the United States to communities in Norway’s Arctic, the Micronesian islands, and the French Alps, this book is an unprecedented portrait of a global crisis we thought we understood.

In Homelessness Is a Housing Problem, Gregg Colburn and Clayton Page Aldern seek to explain the substantial regional variation in rates of homelessness in cities across the United States. In a departure from many analytical approaches, Colburn and Aldern shift their focus from the individual experiencing homelessness to the metropolitan area. Using accessible statistical analysis, they test a range of conventional beliefs about what drives the prevalence of homelessness in a given city-including mental illness, drug use, poverty, weather, generosity of public assistance, and low-income mobility-and find that none explain the regional variation observed across the country. Instead, housing market conditions, such as the cost and availability of rental housing, offer a far more convincing account. With rigor and clarity, Homelessness Is a Housing Problem explores U.S. cities' diverse experiences with housing precarity and offers policy solutions for unique regional contexts.