Some answers from an atmospheric scientist
In 2000, the ozone hole was at its largest. Read on for more facts about the ozone hole.
A state-by-state breakdown of policies that could change your community.
2016 has been a rough year, but it's not all doom and gloom
Texas Schoolbook Massacre
Worms, planets, extra dimensions: just a few of the things that inspire the most creative young scientists of the year
The perils of working on a fragile ice shelf.
Antarctica: Just the facts
Stories from the coolest day jobs in the world.
Our experts tackle your toughest science questions
But don't worry, the penguins won't float away
A new study finds that trees are fueling air pollution--with a lot of help from humans
A new study suggests an oily pate may lower ozone levels; but is the alternative any healthier?
How green are aerosol cans now, with chlorofluorocarbons out of the picture?
Nearly a decade ago, NASA built an Earth-monitoring satellite that could have observed global warming in action. Then the agency stashed it in a warehouse in Maryland, where it remains to this day.
Harvard has a world-class trove of valuable astronomical data. But it's in the form of half a million glass photographic plates
On the 40th anniversary of Earth Day, we take a look back at where it all began
Fascinating fecal science.
Cheery happy times
Ken Miller designs smoke displays for NFL games and air shows, but he tests his most destructive creations at home.