| Jul 10, 2014
| 2:37 PM
Nineteen years ago this month, Chicago experienced one of the worst heat waves in its history. Nearly 500 people, mostly poor and elderly residents of the city’s dense urban core, perished in sweltering temperatures and oppressive humidity.
| Jul 2, 2014
| 3:00 PM
Forget climbing Mt. Everest — for most humans, just eking out a living on the harsh Tibetan plateau is challenge enough. But Tibetan people have thrived there for thousands of years, and a new study says it's thanks to a genetic adaptation they...
| Jul 5, 2014
| 8:51 PM
A U.S. Fish and Wildlife Service official has ordered federal biologists to withdraw their conclusion that the last 300 wolverines in the continental United States deserve threatened species status.
The biologists had recommended the protection on...
| Jul 5, 2014
| 9:00 AM
When you look at a mantis shrimp, you see a vivid lobster-like crustacean whose forearms can strike with the force of a .22-caliber bullet. But when a mantis shrimp looks at you, we have no idea what it sees. That’s because the mantis shrimp...
| Jun 19, 2014
| 6:00 AM
Scientists say it would have been a catastrophe of unprecedented proportions. If the Glen Canyon Dam had failed, it would have changed the lives of millions of people and reshaped the history of the American West.
Only a lucky break in the weather...
| Jun 21, 2014
| 7:00 AM
Just beyond the traffic and palm trees of Wilshire Boulevard, hidden beneath the shadows of nondescript office buildings, lie the tar-slicked bones of many thousand long-dead creatures.
These unfortunates found themselves mired in the sticky bitumen...
| Jun 25, 2014
| 5:48 PM
Scott Richardson is up at dawn, standing atop a rocky ridgeline near his base camp, a solitary figure in the slanting light. He surveys a primordial wilderness of dry creek beds and stands of juniper and pinyon pine.
"This is dinosaur country," he says,...
| Jun 26, 2014
| 8:00 AM
In a small kitchen, an amateur cook roots around in the cupboard for a package of ramen. He fills a pot with water, tosses in the noodles, and sets them on the stove to cook. But this chef won’t enjoy the fruits of his labor. That’s because...
| Jun 27, 2014
| 4:39 PM
Southern Californians have fallen far short of achieving the 20% voluntary cut in water use sought by Gov. Jerry Brown in the face of the deep drought afflicting every corner of the state.
A recent statewide survey found that urban water use in...
| Jun 30, 2014
| 10:57 AM
Halfway to space in the skies above Hawaii, NASA successfully tested its Low-Density Supersonic Decelerator, a vehicle equipped with new technology for ferrying heavy payloads to Mars. A massive balloon lifted the saucer-shaped vehicle from a naval base...
| Jun 30, 2014
| 9:26 PM
Frustrated beachgoers this summer will finally have a remedy against anyone who blocks public access to California's shoreline.
Under a new law that takes effect Tuesday, the California Coastal Commission will for the first time have the authority to...