Power plants that burn fossil fuels release carbon dioxide as well as a complex soup of chemicals, including nitrogen and sulfur. These chemicals in the air actually help keep global warming in check by reflecting sunlight back into space and by interacting with carbon dioxide. Above, the Bruce Mansfield Power Plant in Shippingport, Pa.
Cleaning up the air, while good for our lungs, could make global warming worse. That conclusion is underscored by a new study, which looks at the pollutants that go up smokestacks along with carbon dioxide.
These pollutants are called aerosols and they include soot as well as compounds of nitrogen and sulfur and other stuff into the air. Natalie Mahowald, a climate researcher at Cornell University, says so far, scientists have mostly tried to understand what those aerosols do while they're actually in the air.
On Tuesday, Italy's Parliament cast a vote on a measure to approve the 2010 state finances. But it was no ordinary vote: It laid bare the fact that Italian Prime Minister Silvio Berlusconi had lost a majority. That vote would eventually lead to Berlusconi offering his resignation on Wednesday.
In all the news, we missed this interesting picture:
Wilson Ramos of the Washington Nationals appears to be the first Major League Baseball player to have fallen victim to what's become an alarming trend in Venezuela: the kidnapping and holding for ransom of the rich. He was grabbed Wednesday by gunmen and hasn't been seen since.
But he's not the first major leaguer to have been touched by the epidemic of kidnappings-for-ransom in Venezuela.
'Tis almost the season, and what would the holidays be without our favorite foods?
There are the traditional standbys — like turkey and cranberry sauce at Thanksgiving, or latkes for Hanukkah. But many people also have a specialdish they eat only during the holidays. For example, one NPR reader raves about lefse, which she says is a potato-based staple for any traditional Norwegian-American holiday dinner. It's "best served hot with butter. Or cold with butter and sugar. Butter is key," she writes.
Soul food has become the comfort food for a lot of Americans – not just the African-Americans whose ancestors invented it.
Now, food educators are looking closely at soul food's culinary roots for inspiration on how to eat healthfully today.
A group of culinary historians, nutritionists and health experts have put together the Oldways African Heritage Diet Pyramid, a new model for healthful eating designed specifically for African-Americans and descendants of Africans everywhere.
The Nixon Library and National Archives have released a trove of documents (.pdf and a big file) relating to former President Richard Nixon's grand jury testimony. The testimony, taken after Nixon resigned, was the first by a president. Nixon was interviewed at his California home on June 23 and 24, 1975, after he had been pardoned by President Gerald Ford. The release of documents was ordered by a federal judge back in July.
With so much attention being given to the firing of football coach Joe Paterno and school President Graham Spanier, as well the long-term impact on the school from the sexual abuse scandal that came to light at Penn State this week, there's a danger of the alleged victims being forgotten.
Add minimally invasive surgery through an opening between the cheek and jaw to the list of procedures I'm happy exist and that I hope I'll never have to endure.
A Johns Hopkins surgeon who is pretty handy with an endoscope has figured out how to operate in some hard-to-reach spots at the base of the skull through a natural opening that's above the jawbone, behind the back teeth and just below the cheekbone.
It requires a small incision inside the cheek, sure, but that's no biggie, really.
It didn't take before the Obama administration backed down on a plan to tax Christmas trees this holiday season. Shortly after the USDA announced it had approved a 15-cent per tree fee, there was an uproar.