This is what it's like to rappel into an active volcano
September 10, 2014, 5:11 p.m. by Russell McLendon
An epic new video follows four explorers into Vanuatu's Ambrym volcano, whose Marum crater holds a roiling lava lake.
To save a cathedral, marinate in olive oil
January 14, 2013, 4:30 p.m. by Marc Lallanilla, LiveScience
The limestone rock used to build cathedrals in northern England are vulnerable to acid rain.
Air pollution now a top 10 disease health risk
January 3, 2013, 3:34 p.m. by Jim Motavalli
New Delhi adds 1,400 poorly regulated new cars to its roads every day, so it's no wonder that the city is choking on auto exhaust. Asian air pollution kills 2 million people every year. Tough emissions laws in the U.S. explain why we're breathing better, despite adding cars, population and miles tra
Why cemeteries are a great place to track acid rain
February 27, 2012, 8:18 p.m. by Wynne Parry, LiveScience
To a geologist, a gravestone can offer information other rocks can't.
Acid rain solutions
February 6, 2009, 1:47 p.m.
Explore a variety of solutions for acid rain.
Rap star Nelly has been quietly sending 2 kids to college every year for a decade
Photographer captures stunning image of eagle in symmetrical reflection
Tortoise 'marriage' ends after 115 years
'Super mom' spotted on a Minnesota lake — with 56 ducklings in tow
Costa Rica has doubled its forest cover in the last 30 years
The lost towns under Lake Murray