Science & Environment

The Two-Way
4:08 pm
Fri May 24, 2013

Ring Nebula Is More Like A Jelly Doughnut, NASA Says

The famous Ring Nebula is shown here in striking detail, in a composite image made from images from NASA's Hubble Space Telescope and infrared data from telescopes on Earth.
NASA, ESA, C.R. Robert O'Dell, G.J. Ferland, W.J. Henney and M. Peimbert

The Ring Nebula, whose iconic shape and large size make it a favorite of amateur astronomers, can now be seen in new detail, after NASA's Hubble Space Telescope captured a sharp image of the nebula. Researchers say the new clarity reveals details that were previously unseen, and a structure that's more complex than scientists had believed.

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The Two-Way
1:05 pm
Fri May 24, 2013

Amphibians' Population Decline Marked In New U.S. Study

Populations of frogs and other amphibians are declining at an average rate of 3.7 percent each year, according to a new U.S. Geological Survey study.
Karen Bleier AFP/Getty Images

Originally published on Fri May 24, 2013 1:37 pm

Populations of frogs, salamanders and other amphibians are declining at an average rate of 3.7 percent each year, according to a U.S. Geological Survey study released this week. Researchers say the study is the first to calculate how quickly amphibians are disappearing in the United States.

"If the rate observed is representative and remains unchanged, these species would disappear from half of the habitats they currently occupy in about 20 years," according to the USGS.

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NPR Story
11:53 am
Fri May 24, 2013

Tracking Killer Tornadoes

Originally published on Fri May 24, 2013 2:58 pm

Transcript

FLORA LICHTMAN, HOST:

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NPR Story
11:53 am
Fri May 24, 2013

Reinventing Farming For A Changing Climate

Originally published on Fri May 24, 2013 2:58 pm

Transcript

FLORA LICHTMAN, HOST:

This is SCIENCE FRIDAY. I'm Flora Lichtman. You've likely heard of the legendary explorers Lewis and Clark, but maybe not of the U.S. Army explorer Stephen Harriman Long, an engineer who led a scientific expedition through the Great Plains 15 years after Lewis and Clark.

His expedition traveled through Oklahoma, Kansas and Nebraska. And what did his crew make of "America's Breadbasket"? A place wholly unfit for cultivation or agriculture, they said. On a map, the explorers labeled the Great Plains as the Great American Desert.

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NPR Story
11:53 am
Fri May 24, 2013

Studies Question Potential Alzheimer's Treatment

Originally published on Fri May 24, 2013 2:58 pm

Transcript

FLORA LICHTMAN, HOST:

This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow today. Last year, researchers reported a breakthrough in treating Alzheimer's disease. They'd found a drug that appeared to reverse the symptoms of Alzheimer's in mice. The drug was already on the market, approved by the FDA to treat a type of skin cancer, meaning Alzheimer's patients could ask their doctors for a prescription, and some did.

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Krulwich Wonders...
8:45 am
Fri May 24, 2013

Who's The Best Drinker? Dogs? Cats? Or Pigeons?

Newspix/Rex/Rex USA

Originally published on Fri May 24, 2013 11:56 am

Take a look at this.

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Parallels
4:11 am
Fri May 24, 2013

China's Air Pollution: Is The Government Willing To Act?

Skyscrapers are obscured by heavy haze in Beijing on Jan. 13. Air pollution remains a serious — sometimes overwhelming — problem, but researchers say environmental technology is available to solve it.
Ng Han Guan AP

Originally published on Fri May 24, 2013 11:55 am

Denise Mauzerall arrived in Beijing this year at a time that was both horrifying and illuminating. The capital was facing some of its worst pollution in recent memory, and Mauzerall, a Princeton environmental engineering professor, was passing through on her way to a university forum on the future of cities.

"I took the fast train from Beijing to Shanghai, and looking out the window for large sections of that trip, you couldn't see more than 20 feet," Mauzerall recalled.

To Mauzerall, the lesson was surprising and inescapable.

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Shots - Health News
6:27 pm
Thu May 23, 2013

Why You Have To Scratch That Itch

The origin of itch has confounded scientists for decades.
Oktay Ortakcioglu iStockphoto.com

Originally published on Fri May 24, 2013 11:20 am

Everybody itches. Sometimes itch serves as a useful warning signal — there's a bug on your back! But sometimes itch arises for no apparent reason, and can be a torment.

Think of the itchy skin disorder eczema, or the constant itching caused by some cancers. "A very high percentage of people who're on dialysis for chronic kidney disease develop severe itch that's very difficult to manage," says Dr. Ethan Lerner, an associate professor of dermatology at Harvard Medical School.

Scientists now say they've got a much better clue as to how itch happens.

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Shots - Health News
6:03 pm
Thu May 23, 2013

The Weight Of A Med Student's Subconscious Bias

More than a third of medical students in a North Carolina study had a bias against overweight people.
iStockphoto.com

Quite a few medical school students have something against obese people, and most of those who have such a bias are unaware of it.

That's the conclusion of study appearing in the July issue of Academic Medicine. It was conducted at the Wake Forest School of Medicine in Winston-Salem, N.C. The study's author says the subconscious judgments could affect how patients are treated.

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Science
6:01 pm
Thu May 23, 2013

'Extremely Active' Atlantic Hurricane Season Predicted

Hurricane Sandy churns off the Atlantic coast on Oct. 29. NOAA officials are forecasting seven to 11 hurricanes, compared with about six in a typical season.
NASA Getty Images

Originally published on Thu May 23, 2013 8:23 pm

Unusually warm ocean temperatures and favorable wind patterns mean the Atlantic is likely to see "an active or extremely active" hurricane season this year, say officials from the National Oceanic and Atmospheric Administration.

The agency expects between seven and 11 hurricanes and as many as 20 named storms during the 2013 season, which runs from June 1 through November.

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