It is the best of what's new.
With so many problems with our oceans--and solutions to them--it can be tricky to know where to start. So we asked the experts
A carbon tax would make companies think harder about using fossil fuels, which spur rising acidity in the seas
As the seas absorb more carbon dioxide, their pH drops.
The Triassic die-off is one of 5 mass extinctions on Earth in the past 542 million years.
We spent twenty-four hours on a Greenpeace boat in the Gulf of Mexico looking for oil and dispersant among marine life. On the six-month anniversary of the leak, we report back
Geoengineering is always controversial, but it's even more controversial when you don't tell anyone first.
Location matters. Especially to extinction-causing asteroids.
A state-by-state breakdown of policies that could change your community.
Launch the gallery below, and enjoy our favorite pictures of the year, all in one place
Geoengineering could cause more problems than the global warming it aims to stop
Elizabeth Kolbert, author of The Sixth Extinction, talks with Popular Science's reporter about the prehistory and the present of mass species die-offs
As students everywhere return to school, the luckiest are heading for caves and rocket firing ranges instead of lecture halls
A brain teaser featuring classic figures of computer gaming.
Nuclear energy is looking like it will be a big part of a fossil-fuel-free future in the U.S. But the big question remains as big as ever: What's to be done with the waste it generates?
Why just rebuild the Crescent City when we can reinvent it? Here, the complete plan for riding out a category-5 storm
The story of how one of the most polluted waterways in America came to be located in one of the country's most expensive neighborhoods. Also: dysentery, cancer, and arsenic poisoning.
While their peers worry about zits, these rising young stars are designing lunar bioreactors and new cancer drugs. What did you accomplish before turning 18? Meet our eight future Edisons here
For environmentalist Jesse Ausubel, going green means land conservation and energy efficiency—and forgetting “boutique” renewables like windmills and biofuels
From harvesting energy to building networks, nature has been solving problems for billions of years longer than humans have
The tomatoes of tomorrow could solve multiple problems if grown in salt water
To rescue the Earth, we need bold engineering ideas that go beyond simple recycling