To green or not to green?
See the effects of global warming while contributing to them!
How you contribute to global warming depends a lot on where you live.
The industry and the F.A.A. say the climate effects of flying civilians into space will be negligible, but some scientists fret about the accumulation of black carbon in the stratosphere.
A new ice age, exploding stars, the hypothetical Doomsday Machine, and more scenarios that are almost certain to eradicate life on Earth
2011 is shaping up to be a great year for science. Here's what to look forward to
Conceptual shelters that will protect us all from the perils of our rapidly changing environment: rising waters, extreme heat, rampant pollution and overpopulation
Greening the world's most iconic skyscraper
In the global race to reduce carbon emissions, these eco-minded communities, from Kansas to the Maldives, lead the pack. Here's how they're making their carbon footprints disappear
See how PopSci staffers are staying green this Earth Day, and get the science behind the scenes
Metaphors for understanding the mind
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
Australia has always had the market cornered on enormous animals trying to kill you
A state-by-state breakdown of policies that could change your community.
When it's 115 degrees in March, it might take a Hail Mary of a solution to help us
We visit operating rooms, observatories, and islands full of slightly-less-than-rational monkeys to find the young geniuses who are shaping the future of science
More than 50 of the most dangerous, disgusting, humiliating and just plain bad professions