The shrinking of an immense swath of Antarctic ice threatens to raise sea level and there may be no stopping it
Explanations of the science underlying the world's most prestigious awards for physics, chemistry and physiology plus a look at the prizes for peace, won by a physicians organization, and economics...
Ice entombed our planet hundreds of millions of years ago, and complex animals evolved in the greenhouse heat wave that followed
Where were you on Y2K? Scientific American's readers report their experiences and share their observations.
Emeritus Professor Kelvin Rodolfo of the University of Illinois at Chicago's Department of Earth and Environmental Sciences provides this answer
No terrorist attacks or errant missile launches marked the start of Y2K. Indeed, midnight on December 31, 1999, came and went with only minor glitches. Have any to report? Our readers respond...
Methane once frozen under the seafloor may help heat up the climate
To guard against terrorism, the Pentagon looks to image-recognition technology
Free-air optical networks go for a test run
Data produced in federally supported studies are now part of the public record
As the U.S. turns over the canal, Panama prepares for visitors