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New research from North Carolina State University and the University of Colorado Boulder finds that steep declines in the use of coal for power generation over the past decade were caused largely by less expensive natural gas and the availability of wind energy – not by environmental regulations.

“From 2008 to 2013, coal dropped from about 50 percent of U.S. to around 30 percent,” says Harrison Fell, an associate professor of resource economics at NC State and co-lead author of a paper on the work.

“Coal boosters blamed stiffer regulations, calling it a ‘war on coal.’ But that same time period saw a steep drop in the cost of natural gas and an increase in wind . We wanted to know how big a role each of these factors played in driving down the demand for coal.”

Continue reading “Natural gas prices, not ‘war on coal,’ were key to coal power decline” | >

A membrane made up of block polymers has the customizable and uniform pore sizes needed for filtering or recovering particular substances from wastewater, researchers say in a review published in npj Clean Water.

Some parts of the world have an increasing need to generate drinkable water from wastewater due to excessive chemical discharge into typical water sources or lack of rainfall. Researchers from Purdue University and the University of Notre Dame believe that a block membrane could not only improve desalination and filtration of wastewater, but could also be used in forthcoming hybrid water treatment processes that simultaneously recover substances for other purposes.

“Current nanofiltration membranes used for desalination tend to separate things based on size and electrostatic interactions, but not chemical identity,” said Bryan Boudouris, Purdue’s Robert and Sally Weist Associate Professor of Chemical Engineering. “If we tailor the right membrane to the right application to begin with, then less energy is used.”

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NASA’s next Red Planet explorer has arrived at Vandenberg Air Force Base in California — a big step forward in the countdown to T-zero. The spacecraft is called InSight — short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport — and it’s being tested, fueled and encapsulated for launch aboard the powerful United Launch Alliance Atlas V rocket. The upcoming liftoff will mark the first time an interplanetary mission has launched from the West Coast.

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And that’s just one of the ways bad guys are putting drones to use, law enforcement officials say.

DENVER, Colorado — Last winter, on the outskirts of a large U.S. city, an FBI hostage rescue team set up an elevated observation post to assess an unfolding situation. Soon they heard the buzz of small drones — and then the tiny aircraft were all around them, swooping past in a series of “high-speed low passes at the agents in the observation post to flush them,” the head of the agency’s operational technology law unit told attendees of the AUVSI Xponential conference here. Result: “We were then blind,” said Joe Mazel, meaning the group lost situational awareness of the target. “It definitely presented some challenges.”

The incident remains “law enforcement-sensitive,” Mazel said Wednesday, declining to say just where or when it took place. But it shows how criminal groups are using small drones for increasingly elaborate crimes.

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Japan’s labor force do not mind robots in factories because they’re seen as a source of help, Japanese Deputy Prime Minister and Minister of Finance Taro Aso said in a panel discussion at the Asian Development Bank’s annual gathering in Manila.

Unlike many of their Western counterparts, Japanese workers aren’t afraid of robots stealing their jobs, a top-ranking official from the country said Friday.

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