The U.S. Environmental Protection Agency could soon issue a final ruling that aims to force oil companies to replace E10, gasoline mixed with 10 percent ethanol, with E15.
This move could come just as widespread support for ethanol, which is made from corn, appears to be eroding.
Mike Mitchell was once a true believer in ethanol as a homegrown solution to foreign oil imports. He owns gas stations, and he went further than most, installing expensive blender pumps that let customers choose E15, E20 and all the way up to E85.
More than 100 years ago, Golgi staining on nerve cells opened the gates to modern neuroscience. Scientists recently developed the Technicolor version of Golgi staining, Brainbow, allowing more detailed reconstructions of brain circuits.
Credit AFP/Getty Images
With a combination of genetic tricks and fancy proteins, researchers have colorfully labelled hundreds of individual neurons with distinctive hues to create a "Brainbow."
During the State of the Union, President Obama said the nation is about to embark on an ambitious project: to examine the human brain and create a road map to the trillions of connections that make it work.
"Every dollar we invested to map the human genome returned $140 to our economy — every dollar," the president said. "Today, our scientists are mapping the human brain to unlock the answers to Alzheimer's."
From NPR News, this is ALL THINGS CONSIDERED. I'm Audie Cornish.
ROBERT SIEGEL, HOST:
And I'm Robert Siegel. Today, the Environmental Protection Agency proposed a new rule to clean up gasoline. The regulation would reduce ozone and other air pollutants by close to 30 percent. That would benefit 100 million people who now live in areas that at times have unhealthful air. NPR's Richard Harris reports.
Tucked away inside the new federal budget for this year - which President Obama signed yesterday - is one, small paragraph dealing with genetically engineered crops. That paragraph - actually, one long, complicated sentence - has the biotech industry smiling. But opponents of biotech crops are hopping mad. They say this biotech rider, as they call it, is a blatant attempt to shield biotech crops from all judicial oversight.
Joining me now to talk about this is NPR's Dan Charles. Welcome, Dan.
A large new government study should reassure parents who are afraid that kids are getting autism because they receive too many vaccines too early in life.
The study, by researchers at the Center for Disease Control and Prevention, found no connection between the number of vaccines a child received and his or her risk of autism spectrum disorder. It also found that even though kids are getting more vaccines these days, those vaccines contain many fewer of the substances that provoke an immune response.
A worker stands on top of a storage bin on July 27, 2011, at a drilling operation in Claysville, Pa. The dust is from powder mixed with water for hydraulic fracturing.
Credit Keith Srakocic / AP
Dust blows off a pile of fracking sand at a mine near Chippewa Falls, Wis., on Dec. 15, 2011. Some of the air samples the National Institute for Occupational Safety and Health experts collected at fracking sites had such high levels of silica that the respirators typically worn by workers wouldn't offer enough protection, according to NIOSH standards.
Credit Steve Karnowski / AP
A local contractor closes the valve on his tanker truck on July 27, 2011, after watering the roads to help keep down dust at a hydraulic fracturing operation in Claysville, Pa.
When workplace safety expert Eric Esswein got a chance to see fracking in action not too long ago, what he noticed was all the dust.
It was coming off big machines used to haul around huge loads of sand. The sand is a critical part of the hydraulic fracturing method of oil and gas extraction. After workers drill down into rock, they create fractures in that rock by pumping in a mixture of water, chemicals and sand. The sand keeps the cracks propped open so that oil and gas are released.
There's a mystery in West Africa that's puzzled scientists for years. Strange circles of bare soil appear in grassland; they're commonly called "fairy circles." These naturally occurring shapes last for decades, until the grass eventually takes over and the circles fade.
Now German scientists think they have an explanation — a horde of insects seems to be bioengineering thousands of miles of desert.
Originally published on Thu March 28, 2013 12:06 pm
Deadly microbes like salmonella and E. coli can lurk on the surface of spinach, lettuce and other fresh foods. But many more benign microbes also flourish there, living lives of quiet obscurity, much like the tiny Whos in Dr. Seuss' Whoville. Until now.
Scientists at the University of Colorado have taken what may be the first broad inventory of the microbes that live on strawberries, lettuce, tomatoes and eight other popular fresh foods.
It turns out the invisible communities living on our food vary greatly, depending on the type and whether it's conventional or organic.
How do oysters attach themselves to rocks? They need a glue, but a glue that can set in a watery environment. In this installment of "Joe's Big Idea," NPR's Joe Palca reports that glue could lead to medical advances.
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