In this undated picture, Mount Everest, the world's tallest mountain at 29,029 feet, stands behind the Khumbu Glacier, one of the longest glaciers in the world. Nepal has more than 2,300 glacial lakes, and experts say at least 20 are in danger of bursting.
The Himalayas are sometimes called the world's "third pole" because they are covered with thousands of glaciers. Water from those glaciers helps feed some of the world's most important rivers, including the Ganges and the Indus. And as those glaciers melt, they will contribute to rising sea levels.
So a lot is at stake in understanding these glaciers and how they will respond in a warming world. Researchers writing in the latest issue of Science magazine make it clear they are still struggling at that task.
Republican presidential candidate Mitt Romney, joined by Sen. Marco Rubio, R-Fla., talks to reporters during a news conference in Aston, Pa., on Monday. Rubio is frequently mentioned as a potential running mate for Romney.
Ahead of Pennsylvania's primary Tuesday, the likely Republican presidential nominee has been campaigning in the state with a man at the center of running-mate speculation — Florida Sen. Marco Rubio. But Mitt Romney hasn't said much about whom he might name as his vice presidential choice.
Romney has said he appointed a longtime aide to handle the process and that he hasn't yet discussed making a list of potential candidates. But just about everyone else in politics is discussing it. And the men at the top of that list are asked about it a lot.
Natasha Shamone-Gilmore (right) attends church with her husband, Curtis Gilmore (center), and her father, Franklin Brunson, 81. Shamone-Gilmore moved Brunson into her Capitol Heights, Md., home after he developed dementia.
"Dad, wake up. Do you know what day it is?" Natasha says to her father during her daily morning routine. The family had a friend install a makeshift wall in their living room to create a bedroom for Franklin.
"In the morning my head is spinning, because I'm thinking of all the things that have to be done," Natasha says. Not only does she care for her father, but her 24-year-old son, Nicholas, also lives in the family home.
Nicholas (left) laughs with his childhood friend Corey Buford while they work on Nicholas' car. Nicholas has briefly abandoned his music aspirations and is close to getting a job with Comcast to install cable. "The money is more important," Nicholas says. "I need something that I can contribute [to the household] with."
Natasha and Curtis pray during Sunday worship at The Sanctuary Baptist church in Capitol Heights, Md. "She is always trying to take care of someone or something — a dog, a cat, a bird," Franklin says of Natasha. "She has been that way since she was knee-high."
Natasha Shamone-Gilmore (right) at church with her husband, Curtis Gilmore (center), and her father, Franklin Brunson, 81. Shamone-Gilmore moved her father into her Capitol Heights, Md., home after he developed dementia.
The retrial of baseball great Roger Clemens began in earnest Monday after a week of jury selection. Clemens is charged with lying in 2008 to a congressional committee when he denied ever using steroids or human growth hormone.
He will be judged by a jury of 10 women and 6 men — 12 jurors and 4 alternates — who will decide whether Clemens lied under oath about using the drugs when he testified before a congressional committee investigating the use of performance-enhancing drugs in baseball.
The Oscar-and Grammy Award-winning artist Jennifer Hudson took the stand today during the trial of the man accused of killing her mother, brother and seven-year-old nephew.
Reporting from Chicago, NPR's Cheryl Corley filed this report for our Newscast unit:
"Hudson began crying when a prosecutor asked her about the last time she saw her family. She answered it was the Sunday before their slaying in October of 2008. The man accused of killing them, William Balfour, was Hudson's brother-in-law at the time.
American Airlines and American Eagle employees protest Monday in New York City against American's plans to cut jobs and labor costs while under bankruptcy court protection. American is seeking permission to break up union contracts and cut expenses, but the unions oppose those plans and support a potential takeover bid by US Airways.
With US Airways breathing down its neck, making nice with its unions as well as its creditors, American Airlines came to New York City on Monday to ask a federal bankruptcy judge for relief. Mostly, American wants relief from its unions — 13,000 jobs would be eliminated under its reorganization proposal. American has been hemorrhaging money for years and wants to lower its costs to compete.
For 50 years, the taco has been a staple of American life. It's in school lunches and Michelin-star restaurants. It even helped launch the food truck craze. So how did the taco come to loom so large in American bellies?
Israelis who support Jewish settlements in the West Bank rally against a demolition order for the outpost of Ulpana on Sunday. Israeli courts have ordered the outpost torn down, but Prime Minister Benjamin Netanyahu's government is looking to keep it intact.