Science

Krulwich Wonders...
8:45 am
Tue September 17, 2013

Always, Always There

An Iraqi civilian walks through the vault of the National Museum in Baghdad, Iraq, on April 12, 2003. Looters opened the museum vault, went on a rampage breaking ancient artifacts stored there by museum authorities before the war started.
Jerome Delay AP

Originally published on Tue September 17, 2013 1:26 pm

I'm going to tell two stories here, two very different stories. One's about bad guys hurting good guys that made me think the world is going to hell; the other is about good guys outfoxing bad guys and made me smile — made me think there's hope, always hope. I found them in different books.

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Research News
4:36 am
Tue September 17, 2013

Telomeres May Hold Clues To Effects Of Aging

Originally published on Tue September 17, 2013 8:38 am

Transcript

STEVE INSKEEP, HOST:

Scientists are reporting an advance in the science of aging and maybe even a clue how to reverse some of aging's effects. They have evidence that lifestyle changes already known to be good for you, like healthy diet, exercise, reducing stress may prevent the chromosomes in our cells from unraveling.

NPR's Richard Knox reports that it's all about little caps on our chromosomes called telomeres.

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Animals
6:52 pm
Mon September 16, 2013

Earwax From Whales Keeps Record Of Ocean Contaminants

A blue whale (and human diver) swimming off the coast of Trincomalee, Sri Lanka, in April 2011.
Amos Nachoun Barcroft Media/Landov

Originally published on Thu March 20, 2014 7:07 am

How often do whales clean their ears? Well, never. And so, year after year, their earwax builds up, layer upon layer. According to a study published Monday, these columns of earwax contain a record of chemical pollution in the oceans.

The study used the earwax extracted from the carcass of a blue whale that washed ashore on a California beach back in 2007. Scientists at the Santa Barbara Museum of Natural History collected the wax from inside the skull of the dead whale and preserved it. The column of wax was almost a foot long.

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Energy
4:55 pm
Mon September 16, 2013

Natural Gas May Be Easier On Climate Than Coal, Despite Methane Leaks

A rig drills a hydraulic fracturing well for natural gas outside Rifle, Colo., in March.
Brennan Linsley AP

Originally published on Mon September 16, 2013 6:11 pm

From the standpoint of global warming, burning natural gas can be better than burning coal, a study published this week suggests.

This is a contentious issue among people who are opposed to the natural gas drilling practice known as fracking. That technique involves injecting water, sand and chemicals into wells to release far more gas than conventional drilling can. Opponents of fracking have been concerned not only about local environmental issues, but also about the potential for methane leaks to make global warming worse.

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Environment
10:12 am
Mon September 16, 2013

Debate Revs As Decision Stalls Over Oil Pipeline From Canada

A 60-foot section of pipe is lowered into a trench during construction of the Gulf Coast Pipeline in Prague, Okla., in March. The Gulf Coast Pipeline, a 485-mile crude oil line, is part of the Keystone XL project and will run from Cushing, Okla. to Nederland, Texas. Although this southern stretch of the pipeline is nearly finished, the northern stretch is still under study.
Bloomberg via Getty Images

Originally published on Mon September 16, 2013 11:56 am

Five years ago this week, a Canadian company proposed building a pipeline to send heavy crude oil from Alberta to U.S. refineries. Although the Obama administration's answer on the Keystone XL pipeline is not expected anytime soon, politicians in Washington and Canada are ramping up the pressure for the project, while environmentalists are pushing hard against it.

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