Mood-sensing smartphone tells your shrink how you feel

PEOPLE with anxiety, depression or stress are often asked to record their mood changes throughout the day, helping psychologists fine-tune their treatment. But they often forget, recording only sparse information at best. Now an emotion-sensing smartphone app that automatically generates someone's "mood diary" could give psychologists all the data they need.

It's the brainchild of Matt Dobson and Duncan Barclay, founders of speech recognition firm EI Technologies, based in Saffron Walden, UK. Instead of relying on people writing diaries, the app, called Xpression, listens for telltale changes in a person's voice that indicate whether they are in one of five emotional states: calm, happy, sad, angry or anxious/frightened. It then lists a person's moods against the times they change, and automatically emails the list to their psychologist at the end of the day.

To work, the app has to be always on, listening out for the user's voice once every second, whether they are talking to family, friends, colleagues or even pets. It also listens in on phone calls. If the user is silent, the app does nothing. Crucially for the users' privacy, it doesn't record their words, instead seeking out telltale acoustic features – like pitch – that are indicative of emotional state.

This kind of emotion recognition via voice pattern already works well and is a "hot area" of research, says Stephen Cox, head of the speech processing lab at the University of East Anglia in Norwich, UK, who is scientific adviser for the firm.

Initially, Xpression will send 200-millisecond-long acoustic snapshots to a remote server where a machine-learning system will work out a person's emotional state before sending it back to the app for storage. Factors like voice loudness, intensity, changes in pitch and speaking pace allow the system to accurately estimate somebody's emotional state. "We extract acoustic features and let the machine-learning system work it out," says Cox. This ability will be built into the app itself eventually, says Dobson.

There's a strong need for this kind of technology, says Adrian Skinner, a clinical psychologist with the UK's National Health Service in Harrogate, North Yorkshire. "With conditions like depression, people tend to stop doing things like filling in mood diaries. If this app gives us more complete diaries it could help us better find the day-to-day triggers that raise or lower a patient's mood," he says.

The firm is a finalist in a UK government competition to identify the nation's top mobile tech company, to be judged on 26 February. An insurance company has already expressed an interest in using the app to ensure the workplace stress therapy it pays for is effective. Clinical trials are due to take place later this year.

This article appeared in print under the headline "We know how you really feel"

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

If you are having a technical problem posting a comment, please contact technical support.

Read More..

Asian markets mixed, yen claws back some losses

HONG KONG: Asian markets were mixed on Friday, with Tokyo dragged by a further strengthening in the yen, while the euro faced selling pressure following weak eurozone data.

Losses on Wall Street added to the gloom after disappointing US economic figures, while traders were casting an eye to a general election in Italy at the weekend.

Tokyo fell 0.50 per cent by the break, Hong Kong lost 0.85 per cent and Shanghai was off 0.16 per cent, but Sydney jumped 1.26 per cent and Seoul added 0.23 per cent.

While some markets were lifted by bargain hunting, sentiment was still weak after minutes from the US Federal Reserve's latest policy meeting that stoked fears it could end its huge monetary easing sooner than expected.

Japan's Nikkei was weighed as the yen rose against the dollar and euro, clawing back some of the massive losses it has seen in recent months.

In early Tokyo trade the dollar sat at 93.04 yen, compared with 93.11 yen in New York Thursday. However, the Japanese unit -- which has lost about 17 per cent against the greenback since November -- is much stronger than the 94.00 yen seen at the start of the month.

And the euro fetched 122.78 yen, against 122.81 yen, and well off the 125.50 yen earlier in the week.

The euro bought $1.3189, against $1.3188 in New York Thursday and well short of the $1.3350 on Monday.

The euro came under increased pressure after a leading eurozone growth indicator showed private business activity hit a two-month low in February.

The Purchasing Managers' Index published by London-based Markit fell to 47.3 in February from 48.6 the previous month.

The February figures contrasted sharply with an improvement in the previous three months, which saw it hit a 10-month high in January.

There is nervousness about Sunday's Italian election, which is too close to call and which markets have warned could send the economy back into crisis if there is no clear winner.

Some fear a return of former prime minister Silvio Berlusconi, which could lead to the dismantling of recent economic reforms that have helped draw the country back from economic crisis.

On Wall Street the Dow was down 0.34 per cent, the S&P 500 eased 0.63 per cent and the Nasdaq dropped 1.04 per cent after worse-than-expected US business activity data, while new claims for unemployment benefits rose last week.

Consumer prices also came in flat for a second month in a row in January, underscoring weak inflationary pressures in the world's number one economy.

Meanwhile, traders are becoming increasingly concerned about the lack of progress in Washington on a deal to avert the sequester, deep government spending cuts economists say will slow US growth.

Oil prices rose, with New York's main contract, light sweet crude for delivery in April gaining 17 cents to $93.01 a barrel and Brent North Sea crude for delivery in April adding 17 cents to $113.70.

Gold was at $1,581.30 at 0247 GMT, compared with $1,568.41 late Thursday.

- AFP/ck

Read More..

PayPal readies launch of mobile payments system in Europe

PayPal's new payment hardware for the Chip and PIN system of credit and debit cards in Europe.

(Credit:
PayPal)

PayPal unveiled new hardware today that will allow it to take its in-person mobile payment system to Europe, expanding the lead it has in the international market on payments rival Square.

PayPal Here, which launched last March in the U.S., Canada, Australia, and Hong Kong, will debut in the U.K. this summer for its first foray into the European market. The eBay-owned payments processor plans to eventually offer the service to other countries on the continent.

About the size of a smartphone, the payments processor's new gadget will allow smartphones to accept credit and debit cards under the Chip and PIN system, which is more prevalent in European markets. Instead of swiping a card through a smartphone-attached dongle, merchants will use Bluetooth to pair the new reader with their iOS or
Android smartphones to process customers' card and PIN information.

"Just like its original counterpart in the U.S. and other countries, it allows you to send invoices and receipts wherever you do business, as well as taking card and of course PayPal payments," Hill Ferguson, VP of Global Product, said in a statement.

PayPal rival Square, which was founded in 2009 by Twitter co-founder Jack Dorsey, offers its mobile payments device in the U.S. and Canada.

PayPal did not reveal how much it intended to charge merchants for the device but did say they would be charged a "small" fee for each transaction.

"We'll announce actual pricing a little closer to the launch," Ferguson said. Currently, PayPal Here charges 2.7 percent to make a transaction, compared with the 2.75 percent that Square charges.

Check out this PayPal video for how transactions would occur:

Read More..

Oldest Known Wild Bird Hatches Chick at 62

Wisdom, the oldest known wild bird, has yet another feather in her cap—a new chick.

The Laysan albatross (Phoebastria immutabilis)—62 years old at least—recently hatched a healthy baby in the U.S. Midway Atoll National Wildlife Refuge, her sixth in a row and possibly the 35th of her lifetime, according to the U.S. Geological Survey's (USGS) North American Bird Banding Program. (Related: "51-Year-Old Albatross Breaks N. American Age Record [2003].")

But Wisdom's longevity would be unknown if it weren't for a longtime bird-banding project founded by USGS research wildlife biologist Chandler Robbins.

Now 94, Robbins was the first scientist to band Wisdom in 1956, who at the time was "just another nesting bird," he said. Over the next ten years, Robbins banded tens of thousands of black-footed albatrosses (Phoebastria nigripes) and Laysan albatrosses as part of a project to study the behavior of the large seabirds, which at the time were colliding with U.S. Navy aircraft.

Robbins didn't return to the tiny Pacific island—now part of the U.S. Papahānaumokuākea Marine National Monument—until 2002, when he "recaptured as many birds as I could in hopes that some of them would be the old-timers."

Indeed, Robbins did recapture Wisdom—but he didn't know it until he got back to his office at the Patuxent Wildlife Research Center in Laurel, Maryland, and checked her band number in the database.

"That was real exciting, because we didn't think the chances of finding one that old would be that good," Robbins said Wednesday in an interview from his office at the Patuxent center, where he still works.

Chandler Robbins counts birds in Maryland's Patuxent Research Refuge.

Photograph by David H. Wells, Corbis

Albatrosses No Bird Brains

Bigger birds such as the albatross generally live longer than smaller ones: The oldest bird in the Guinness Book of Animal Records, a Siberian white crane (Leucogeranus leucogeranus), lived an unconfirmed 82 years. Captive parrots are known to live into their 80s. (See National Geographic's bird pictures.)

The Laysan albatross spends most of the year at sea, nesting on the Midway Atoll (map) in the colder months. Birds start nesting around five years of age, which is how scientists knew that Wisdom was at least five years old in 1956.

Because albatrosses defend their nests, banding them doesn't require a net or a trap as in the case of other bird species, Robbins said—but they're far from tame.

"They've got a long, sharp bill and long, sharp claws—they could do a job on you if you're not careful how to handle them," said Robbins, who estimates he's banded a hundred thousand birds.

For instance, "when you're not looking, the black-footed albatross will sneak up from behind and bite you in the seat of the pants."

But Robbins has a fondness for albatrosses, and Wisdom in particular, especially considering the new dangers that these birds face.

Navy planes are no longer a problem—albatross nesting dunes were moved farther from the runway—but the birds can ingest floating bits of plastic that now inundate parts of the Pacific, get hooked in longlines meant for fish, and be poisoned by lead paint that's still on some of Midway Atoll's buildings. (Also see "Birds in 'Big Trouble' Due to Drugs, Fishing, More.")

That Wisdom survived so many years avoiding all those hazards and is still raising young is quite extraordinary, Robbins said.

"Those birds have a tremendous amount of knowledge in their little skulls."

"Simply Incredible"

Wisdom's accomplishments have caught the attention of other scientists, in particular Sylvia Earle, an oceanographer and National Geographic Explorer in Residence, who said by email that Wisdom is a "symbol of hope for the ocean." (National Geographic News is part of the National Geographic Society.)

Earle visited Wisdom at her nest in January 2012, where she "appeared serenely indifferent to our presence," Earle wrote in the fall 2012 issue of the Virginia Quarterly Review.

"I marveled at the perils she had survived during six decades, including the first ten or so years before she found a lifetime mate. She learned to fly and navigate over thousands of miles to secure enough small fish and squid to sustain herself, and every other year or so, find her way back to the tiny island and small patch of grass where a voraciously hungry chick waited for special delivery meals."

Indeed, Wisdom has logged an estimated two to three million miles since 1956—or four to six trips from Earth to the moon and back, according to the USGS. (Related: "Albatross's Effortless Flight Decoded—May Influence Future Planes.")

Bruce Peterjohn, chief of the North American Bird Banding Program, called Wisdom's story "simply incredible."

"If she were human, she would be eligible for Medicare in a couple years—yet she is still regularly raising young and annually circumnavigating the Pacific Ocean," he said in a statement.

Bird's-Eye View

As for Robbins, he said he'd "love to get out to Midway again." But in the meantime, he's busy going through thousands of bird records in an effort to trace their life histories.

There's much more to learn: For instance, no one has ever succeeded in putting a radio transmitter on an albatross to follow it throughout its entire life-span, Robbins noted.

"It would be [an] exciting project for someone to undertake, but I'm 94 years old," he said, chuckling. "It wouldn't do much for me to start a project at my age."

Read More..

Arias Challenged On Pedophilia Claim

Accused murderer Jodi Arias was challenged today by phone records, text message records, and her own diary entries that appeared to contradict her claim that she caught her ex-boyfriend, Travis Alexander, looking at pictures of naked boys.

Arias had said during her testimony that one afternoon in January 2008, she walked in on Alexander masturbating to pictures of naked boys. She said she fled from the home, threw up, drove around aimlessly, and ignored numerous phone calls from Alexander because she was so upset at what she had seen.

The claim was central to the defense's accusation that Alexander was a "sexual deviant" who grew angry and abusive toward Arias in the months after the incident, culminating in a violent confrontation in June that left Alexander dead.

Arias claimed she killed him in self-defense. She could face the death penalty if convicted of murder.

Catching Up on the Trial? Check Out ABC News' Jodi Arias Trial Coverage

Today, prosecutor Juan Martinez, who has been aggressive in questioning witnesses throughout the trial, volleyed questions at her about the claim of pedophilia, asking her to explain why her and Alexander's cell phone records showed five calls back and forth between the pair throughout the day she allegedly fled in horror. Some of the calls were often initiated Arias, according to phone records.

Jodi Arias Doesn't Remember Stabbing Ex-Boyfriend Watch Video

Jodi Arias Murder Trial: Testimony About Ex's Death Watch Video

Arias on Ex-Boyfriend's Death: 'I Don't Remember' Watch Video

She and Alexander also exchanged text messages throughout the afternoon and evening at a time when Arias claims the pedophilia incident occurred. In those messages they discuss logistics of exchanging one another's cars that night. Alexander sends her text messages about the car from a church social event he attended that night that she never mentioned during her testimony.

Arias stuck by her claim that she saw Alexander masturbating to the pictures, and her voice remained steady under increasingly-loud questioning by Martinez.

But Martinez also sparred with Arias on the stand over minor issues, such as when he asked Arias detailed questions about the timing and order of events from that day and Arias said she could not remember them.

"It seems you have problems with your memory. Is this a longstanding thing? Since you started testifying?" Martinez asked.

"No it goes back farther than that. I don't know even know if I'd call it a problem," Arias said.

"How far back does it go? You don't want to call them problems, are they issues? Can we call them issues? When did you start having them?" he asked in rapid succession. "You say you have memory problems, that it depends on the circumstance. Give me the factors that influence that."

"Usually when men like you or Travis are screaming at me," Arias shot back from the stand. "It affects my brain, it makes my brain scramble."

"You're saying it's Mr. Martinez's fault?" Martinez asked, referring to himself in the third person.

"Objection your honor," Arias' attorney finally shouted. "This is a stunt!"

Timeline of the Jodi Arias Trial

Martinez dwelled at one point about a journal entry where Arias wrote that she missed the Mormon baptism of her friend Lonnie because she was having kinky sex with Alexander. He drew attention to prior testimony that she and Alexander used Tootsie Pops and Pop Rocks candy as sexual props.

"You're trying to get across (in the diary entry) that this involved a sexual liaison with Mr. Alexander right?" he asked. "And you're talking about Tootsie Pops and Pop Rocks?"

"That happened also that night," Arias said.

"You were there, enjoying it, the Tootsie Pops and Pop Rocks?" he asked again, prompting a smirk from Arias.

"I enjoyed his attention," Arias said.

Read More..

Higgs may spell doom, unless supersymmetry saves us

Lisa Grossman, physical sciences reporter

(Image: CERN)

Is the Higgs boson a herald of the apocalypse? That's the suggestion behind a theory, developed more than 30 years ago, that is back in the headlines this week. According to physicists, the mass of the Higgs-like particle announced last summer supports the notion that our universe is teetering on the edge of stability, like a pencil balanced on its point.

"It may be that the universe we live in is inherently unstable," Joseph Lykken, of the Fermi National Accelerator Laboratory in Batavia, Illinois, said on Monday at a meeting of the American Association for the Advancement of Science. "At some point, billions of years from now, it's all going to be wiped out."

Physicists have been wringing their hands about this scenario since 1982, when theorists Michael Turner and Frank Wilczek published a paper about it in Nature, NBC News points out. The pair showed that the vacuum of space can be in different energy states, and it will be most stable at its lowest energy. Trouble arises if we're not there yet, and we're inhabiting a temporarily stable state that should ultimately collapse.

"The universe wants to be in a different state, so eventually to realize that, a little bubble of what you might think of as an alternate universe will appear somewhere, and it will spread out and destroy us," Lykken said at AAAS.

Enter the Higgs boson, the particle form of the field that gives mass to several fundamental particles. The Higgs field permeates the vacuum of space, which means the mass of the boson and the stability of the vacuum are closely intertwined. Theory predicted that if the Higgs boson is heavier than about 129 gigaelectronvolts (GeV), the universe should be on safe footing.

But in July 2012 physicists at CERN, near Geneva, Switzerland announced that a particle closely matching the Higgs had been found by experiments in the Large Hadron Collider (LHC). The much celebrated particle has a mass of about 126 GeV - light enough to raise fears of instability.

There is still hope for the universe as we know it. Some theorists pointed out that the relationship between the Higgs mass and the vacuum of space depends on the mass of a particle called the top quark. If the top quark's mass is different than we think it is, stability might reign.

There are also anomalies with the Higgs measurement, like the fact that it decays into photons more often than predicted. That hints we may yet find particles from the theory of supersymmetry, which says each ordinary particle has heavier "superpartners". If the Higgs has such a relative, it might save us from destruction. But some of these predicted particles, particularly the superpartners of the top quark, can push the universe back into instability.

The worries may remain unconfirmed for a while. The LHC is shutting down for a two-year break so engineers can prepare the machine to shoot higher-energy particle beams, which are needed to probe for superpartners.

Read More..

It's 'The Oscars', now officially

LOS ANGELES: They are the 85th Academy Awards, the climax of Hollywood's awards season, this coming weekend -- except officially they're not. This year, they've been rebranded to "The Oscars."

The Academy of Motion Picture Arts and Sciences (AMPAS), which organizes Tinseltown's biggest awards, did not confirm the change revealed by show co-producer Neil Meron, who said "85th Academy Awards" was too "musty."

But it seems it's true, for this year at least: references to Academy Awards and that it's the 85th show -- a significant anniversary, one might have thought -- quietly disappeared from official AMPAS materials a few weeks ago.

"We're rebranding it," Meron told entertainment news website TheWrap in an interview with co-producer Craig Zadan this week, days before Hollywood's finest take to the red carpet at the Dolby Theatre on Sunday.

"We're not calling it 'The 85th annual Academy Awards,' which keeps it mired somewhat in a musty way. It's called 'The Oscars'," he said, adding that he believed the new approach would continue in years to come.

An AMPAS spokeswoman declined to confirm the change, but said: "We use Academy Awards and the Oscars interchangeably. We'll begin considering next year's marketing campaign in the spring."

Last year's Oscars poster was quite clearly emblazoned with "The 84th Academy Awards." This year's shows a picture of smiling host Seth MacFarlane under "The Oscars," in gold.

The Oscars organizers are widely understood to be targeting a younger audience for their annual show -- and "Family Guy" creator MacFarlane could be part of that strategy.

Two years ago a clear get-the-young-viewers ploy, with actors James Franco and Anne Hathaway jointly fronting the show, was widely criticized, with Franco's wooden performance drawing particular scorn.

Last year Eddie Murphy was initially set to host but pulled out at the last minute after an embarrassing gay slur row involving one of the producers, and the Academy fell back on veteran Billy Crystal, who hosted for a ninth time.

- AFP/sf

Read More..

Google said to release touch-screen laptop this year

An Acer Chromebook.

(Credit:
Sarah Tew/CNET)

As the divide between laptops and tablets continues to shrink, word is that Google has already developed its first Chrome-powered touchscreen laptop.

According to the Wall Street Journal, the tech giant's new device would come with cloud computing and could go on sale as soon as this year.

This endeavor would put Google in closer competition with Microsoft, which has already developed its own Windows touch-screen laptops. According to the Wall Street Journal, 25 percent of all
Windows 8 laptops sold in the U.S. last month had touch screens.

Microsoft also has a major claim on the low-cost laptop market. But, Google edged into this territory over the past year too. According to the Wall Street Journal, Google sold nearly 100,000 $199 and $249 Chromebooks in the U.S. during the fourth quarter of last year.

Chrome OS already includes a touch-screen keyboard, which means that it shouldn't be too difficult to add a touch-centric interface to the operating system, especially with Google's experience with
Android.

The company launched two Chromebooks from Acer and Samsung last year. It's unclear which hardware manufacturer Google might have partnered with for the possible upcoming touchscreen laptop.

Having touch on a traditional laptop is a growing trend and could be commonplace in the near future -- as it is for any mobile device now. In December, Acer President Jim Wong said touch-screen laptops will soon come to dominate the PC market.

CNET contacted Google for comment. We'll update the story when we get more information.

Read More..

Newtown Shooter Had Sensory Processing Disorder

From the time he was little, Adam Lanza couldn't bear to be touched. By middle school, the chaos and noise of large, bustling classrooms began to upset him. At 20, just before the Newtown shootings, he was isolated and, the world would later learn, disturbed.

All this was revealed in "Raising Adam Lanza," an investigative report by the Hartford Courant in partnership with the PBS news program FRONTLINE, which aired Tuesday night.

Before the age of 6, Lanza had been diagnosed with a controversial condition, "sensory integration disorder" -- now known as sensory processing disorder, according to the report.

Those with sensory processing disorder or SPD may over-respond to stimuli and find clothing, physical contact, light, sound or food unbearable. They may also under-respond and feel little or no reaction to pain or extreme hot and cold. A third form involves sensory motor problems that can cause weakness and clumsiness or delay in developing motor skills.

In Photos: Sandy Hook Elementary School Shooting, Mourning

Whether SPD is a distinct disorder or a collection of symptoms pointing to other neurological deficits, most often anxiety or attention-deficit hyperactivity disorder (ADHD), has been debated by the medical community for more than two decades.

Parents Cope With Sandy Hook Students' Return to School Watch Video

National Rifle Association Calls for Armed Security at Schools Watch Video

Nurse Sues Michigan Hospital for Discrimination Watch Video

No one will know why the withdrawn Lanza shot his mother four times in her own bed, then went to Sandy Hook Elementary School to slaughter six women and 20 first-graders before taking his own life on Dec. 14, 2012.

But this report, the most detailed account to date on his troubled life, paints a picture of a child coping with special needs and a mother, "devoted but perhaps misguided," struggling unsuccessfully to help.

"The most surprising thing for me was this sort of inwardness of Adam, a world view of someone that was afraid of the world," said show producer Frank Koughan. "He just reacted badly to the whole world and didn't want to be part of it. He was not some violent monster, except on one particular day, when he was exceedingly monstrous."

The investigative team interviewed family and friends of the shooter's parents, Nancy and Peter Lanza, and reviewed a decade's worth of messages and emails from his mother to close friends, describing her son's socially awkward behavior.

"Adam was a quiet kid. He never said a word," Marvin LaFontaine, a friend of Nancy Lanza, told them. "There was a weirdness about him and Nancy warned me once at one of the Scout meetings … 'Don't touch Adam.' She said he just can't stand that. He'd become teary-eyed and I think he would run to his mother."

In 1998, the Lanzas left their home in New Hampshire for Connecticut with Adam, who had already been diagnosed with the sensory disorder and was "coded" with an individual education plan, according to a family member who did not want to be identified by FRONTLINE.

"It was somebody well-placed who was completely in a position to know," said Koughan, 45, a veteran journalist who produced the film, "Drop-Out Nation."

Lanza didn't recognize pain, another feature of some types of SPD. He couldn't cope with loud noise, confusion or change, which would cause him to "shut down," according to the report.

"He'd almost go into a catatonic kind of state, which is another reason why in hindsight, he didn't seem like a threat to anybody," said Koughan. "He didn't lash out or beat up kids. He went within himself, until one day he didn't."

Read More..

Today on New Scientist: 19 February 2013

Doctors would tax sugary drinks to combat obesity

Hiking the price of fizzy drinks would cut consumption and so help fight obesity, urges the British Academy of Medical Royal Colleges

Space station's dark matter hunter coy about findings

Researchers on the Alpha Magnetic Spectrometer, which sits above the International Space Station, have collected their first results - but won't reveal them for two weeks

Huge telescopes could spy alien oxygen

Hunting for oxygen in the atmospheres of distant exoplanets is a tough job, but a new wave of giant telescopes should be up to the task

Evolution's detectives: Closing in on missing links

Technology is taking the guesswork out of finding evolution's turning points, from the first fish with legs to our own recent forebears, says Jeff Hecht

Moody Mercury shows its hidden colours

False-colour pictures let us see the chemical and physical landscape of the normally beige planet closest to the sun

LHC shuts down to prepare for peak energy in 2015

Over the next two years, engineers will be giving the Large Hadron Collider the makeover it needs to reach its maximum design energy

Insert real news events into your mobile game

From meteor airbursts to footballing fracas, mobile games could soon be brimming with news events that lend them more currency

3D-printing pen turns doodles into sculptures

The 3Doodle, which launched on Kickstarter today, lets users draw 3D structures in the air which solidify almost instantly

We need to rethink how we name exoplanets

Fed up with dull names for exoplanets, Alan Stern and his company Uwingu have asked the public for help. Will it be so long 2M 0746+20b, hello Obama?

A shocking cure: Plug in for the ultimate recharge

An electrical cure for ageing attracted the ire of the medical establishment. But could the jazz-age inventor have stumbled upon a genuine therapy?

Biofuel rush is wiping out unique American grasslands

Planting more crops to meet the biofuel demand is destroying grasslands and pastures in the central US, threatening wildlife

Read More..