Science

NPR Story
12:58 pm
Fri November 30, 2012

Glacier Photographer James Balog on 'Chasing Ice'

Originally published on Fri November 30, 2012 3:15 pm

Photographer James Balog on Climate Change and 'Chasing Ice' — In the new documentary "Chasing Ice," photographer James Balog attempts to capture how the world's glaciers are being affected by climate change. As the film debuts across the country, Balog discusses the project, and what needs to be done to save Earth's shrinking glaciers.

Krulwich Wonders...
7:11 am
Fri November 30, 2012

Cornstalks Everywhere But Nothing Else, Not Even A Bee

David Liittschwager

Originally published on Fri November 30, 2012 10:19 am

We'll start in a cornfield — we'll call it an Iowa cornfield in late summer — on a beautiful day. The corn is high. The air is shimmering. There's just one thing missing — and it's a big thing...

...a very big thing, but I won't tell you what, not yet.

Instead, let's take a detour. We'll be back to the cornfield in a minute, but just to make things interesting, I'm going to leap halfway around the world to a public park near Cape Town, South Africa, where you will notice a cube, a metal cube, lying there in the grass.

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Research News
4:04 am
Fri November 30, 2012

Victory Or Defeat? Emotions Aren't All In The Face

Can You Tell Emotion From Faces Alone? A new study suggests that when people evaluated just facial expressions — without cues from the rest of the body — they couldn't tell if the face was showing a positive or negative emotion. Enlarge this photo to see the answers.
Hillel Aviezer The Hebrew University of Jerusalem

Originally published on Fri November 30, 2012 7:20 pm

Photos of athletes in their moment of victory or defeat usually show faces contorted with intense emotion. But a new study suggests that people actually don't use those kinds of extreme facial expressions to judge how a person is feeling.

Instead, surprisingly, people rely on body cues.

Hillel Aviezer, a psychology researcher at Hebrew University of Jerusalem in Israel, wanted to see how accurately people can read intense, real-world facial expressions — instead of the standardized, posed images of facial expressions that are usually used in lab tests.

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Science
4:11 pm
Thu November 29, 2012

Greenland, Antarctic Ice Is Melting Faster

An iceberg that likely calved from Jakobshavn Isbrae, the fastest glacier in western Greenland.
Ian Joughin Science/AAAS

Originally published on Thu November 29, 2012 4:44 pm

Superstorm Sandy sparked a lot of interest in rising sea levels when it swept across the Northeast last month and flooded parts of the coast. Over the next century, more water — and higher sea levels — could come from melting ice in Greenland and Antarctica. How much has been unclear.

But now scientists have developed a much clearer view of how quickly that ice has been melting over the past two decades. And that will help researchers forecast the rate of sea-level rise in the years to come.

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Space
3:57 pm
Thu November 29, 2012

Which Came First: The Galaxy Or The Black Hole?

Originally published on Thu November 29, 2012 4:37 pm

Robert Siegel talks with UT-Austin astrophysicist Karl Gebhardt about his team's discovery of a giant black hole in a tiny galaxy. The discovery contradicts traditional theories of galaxy formation.

Business
3:57 pm
Thu November 29, 2012

Lower Water Levels Dry Up Business On Great Lakes

Originally published on Thu November 29, 2012 4:37 pm

Transcript

MELISSA BLOCK, HOST:

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Environment
3:57 pm
Thu November 29, 2012

Water Levels Dangerously Low On Mississippi River

Originally published on Thu November 29, 2012 4:37 pm

Mississippi River water levels are reaching near-record lows. Sections of the middle Mississippi River may become obstructed in December by rock outcrops in southern Illinois. The Army Corps of Engineers plan to remove the rock pinnacles in February, but river navigation industry leaders say that's not soon enough.

The Salt
3:10 pm
Thu November 29, 2012

Tastier Winter Tomatoes, Thanks To A Boom In Greenhouse Growing

The taste of Mock's tomatoes starts with the seed. He uses only organic varieties, including cherry and several heirloom varieties.
Allison Aubrey NPR

Originally published on Wed December 5, 2012 7:36 am

It may sound like an oxymoron: a delicious local, winter tomato — especially if you happen to live in a cold climate.

But increasingly, farmers from West Virginia to Maine and through the Midwest are going indoors to produce tomatoes and other veggies in demand during the winter months. "There's a huge increase in greenhouse operations," Harry Klee of the University of Florida tells us.

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Space
1:05 pm
Thu November 29, 2012

Space Probe Finds Ice In Mercury's Craters

Researchers say they have identified traces of ice in craters on Mercury, seen here in this Oct. 8, 2008, image from the Messenger spacecraft.
NASA

Originally published on Thu November 29, 2012 4:37 pm

Mercury is not the first planet to come to mind if you were searching for ice in the solar system. After all, the surface temperature across most of the planet is hot enough to melt lead.

But at the poles on Mercury it's a different story. Almost no sun reaches the poles, and as a result, temperatures can drop to less than -100 degrees Fahrenheit. Now, three papers in the journal Science suggest there really is ice at the bottom of craters near the poles on Mercury.

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The Salt
11:33 am
Thu November 29, 2012

Quinoa Craze Inspires North America To Start Growing Its Own

The seeds of this goosefoot plant are known as quinoa, a superfood now in high demand and grown almost exclusively in South America. But some growers think they have the formula to grow it up north.
Janet Matanguihan courtesy Kevin Murphy

The explosion in world popularity of quinoa in the past six years has quadrupled prices at retail outlets. But for all the demand from upscale grocery stores in America to keep their bulk bins filled with the ancient grain-like seed, almost no farmers outside of the arid mountains and coastal valleys of Peru, Bolivia, Ecuador, and Chile grow it.

But plant breeders and scientists who study the biology and economics of quinoa say that is about to change.

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