How you contribute to global warming depends a lot on where you live.
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
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.
Cheaper, plant-based carbon fiber could be used to make lighter cars that consume less fuel.
It's based on the suffering of 4,637 Norwegian men and women aged 20 to 90.
Australia has always had the market cornered on enormous animals trying to kill you
Science tackles the hard questions at last.
Q-carbon is a girl's new best friend
The biggest sheet of nanotubing holds promise, but is it strong enough to one day lift a space elevator?
PopSci experts weigh in on the important questions
New technology produces energy from fuel without burning it
"Thermopower waves" could be a brand-new way to produce electricity
Paves way for better nanomedicine as well as remediation of nanotoxic events