A state-by-state breakdown of policies that could change your community.
To green or not to green?
Stories from the coolest day jobs in the world.
A cartoonist and a climate scientist teamed up on a new book.
For the first time, scientists show how climate synchronizes different species.
Help your friend learn about global warming with gifts that will almost certainly tick him off.
Stories of reindeer, walruses, and Mars simulations
Wheat, rice and corn provide 60 percent of the world's calories -- here's how to prepare them for the future
We're on a collision course with extreme weather. It's time to acknowledge that, and to prepare
Looking at a century of so-called progress
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions
To rescue the Earth, we need bold engineering ideas that go beyond simple recycling
Forget lab coats and beakers: in this gallery of breathtaking images, we celebrate the visually pleasing side of scientific enquiry
Arctic climatologist Konrad Steffen has spent 18 consecutive springs on the Greenland ice cap, personally building and installing the weather stations that help the world's scientists understand what's happening up there. And what's happening may be much worse than anyone thought possible
Our annual bottom-10 list, in which we salute the men and women who do what no salary can adequately reward
PopSci tackles life's whys, hows and who-dunnits in this Q&A-style; feature
Meet the extraordinary scientists whose innovations are bringing us robot cars, new cures and vaccines, the fastest-ever computer animations, and much, much more
Players love the tech, but pro and amateur organizations can hardly keep up with the new materials and radical designs that have rewired and sometimes hot-wired sports.