America Lost Its One Perfect Tree
Lumber, shelter, delicious nuts—there was nothing the American chestnut couldn’t provide.
Science
Future-Proofing Your Town Sounds Great, Until You Try It
After a wildfire razed a Canadian town, its leaders pushed for climate-friendly rebuilding. Residents just wanted to come home.
If Not Vegan, or Vegetarian, How About Chickentarian?
Chicken can be part of a climate-friendly diet; we’re just eating way too much of it.
Winter Illness This Year Is a Different Kind of Ugly
Facing down simultaneous surges of flu, COVID, and RSV, most Americans still aren’t getting the vaccines that could temper the worst effects.
The Number Five Is Nothing Like the Number Four
Our brains process them in completely different ways.
A Big Misconception About the World’s Greatest Infectious Killer
The dogma that tuberculosis is lying dormant in the bodies of 2 billion people might be wrong.
The World Has a New Floor for Climate Ambition
This COP agreement is the least we can do on climate change.
The Fossil-Fuel Industry Has a Rosy Idea of Its Future
As Canada congratulated itself in Dubai on climate leadership, its oil executives milled about the climate conference.
A Radical Idea to Break the Logic of Oil Drilling
An unofficial proposal for a fossil-fuel-nonproliferation treaty is gaining popularity at the UN’s annual climate meeting.
Science Is Becoming Less Human
AI is accelerating the pace of discovery—but at what cost?