Some answers from an atmospheric scientist
How green are aerosol cans now, with chlorofluorocarbons out of the picture?
In 2000, the ozone hole was at its largest. Read on for more facts about the ozone hole.
Worms, planets, extra dimensions: just a few of the things that inspire the most creative young scientists of the year
On the 40th anniversary of Earth Day, we take a look back at where it all began
Harvard has a world-class trove of valuable astronomical data. But it's in the form of half a million glass photographic plates
Our experts tackle your toughest science questions
Cheery happy times
You don't even have to try. The things you do as a matter of course can have grievous ecological effects
Stories from the coolest day jobs in the world.
We'll get a vaccine for addiction, debate the future of nuclear power, use new tech to take on water shortages, and-just maybe-find an extra dimension or two. Happy New Year
Texas Schoolbook Massacre
2016 has been a rough year, but it's not all doom and gloom
To celebrate Earth Day, we've compiled the best images of our planet as seen from NASA's satellites.
Help your friend learn about global warming with gifts that will almost certainly tick him off.
Scientists think a nearby collision of neutron stars could explain the undocumented onslaught of high-energy radiation in the eighth century
Like so many of our own! No judgments, Earth.
What happens to science and technology when we shut it all down?
A new theory of anthropogenic climate improvement
Among global warming's cast of characters, these two stand out.
With help from an ice architect
Forensic scientists in Switzerland are pioneering a whole new way to do autopsies. No scalpel required.