Get cirrus in the fight against climate change



































FEATHERY cirrus clouds are beautiful, but when it comes to climate change, they are the enemy. Found at high-altitude and made of small ice crystals, they trap heat - so more cirrus means a warmer world. Now it seems that, by destroying cirrus, we could reverse all the warming Earth has experienced so far.












In 2009, David Mitchell of the Desert Research Institute in Reno, Nevada, proposed a radical way to stop climate change: get rid of some cirrus. Now Trude Storelvmo of Yale University and colleagues have used a climate model to test the idea.












Storelvmo added powdered bismuth triiodide into the model's troposphere, the layer of the atmosphere in which these clouds form. Ice crystals grew around these particles and expanded, eventually falling out of the sky, reducing cirrus coverage. Without the particles, the ice crystals remained small and stayed up high for longer.












The technique, done on a global scale, created a powerful cooling effect, enough to counteract the 0.8 °C of warming caused by all the greenhouse gases released by humans (Geophysical Research Letters, DOI: 10.1002/grl.50122).


















But too much bismuth triiodide made the ice crystals shrink, so cirrus clouds lasted longer. "If you get the concentrations wrong, you could get the opposite of what you want," says Storelvmo. And, like other schemes for geoengineering, side effects are likely - changes in the jet stream, say.












Different model assumptions give different "safe" amounts of bismuth triiodide, says Tim Lenton of the University of Exeter, UK. "Do we really know the system well enough to be confident of being in the safe zone?" he asks. "You wouldn't want to touch this until you knew."












Mitchell says seeding would take 140 tonnes of bismuth triiodide every year, which by itself would cost $19 million.




















































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..

Sri Lanka hotel in hot water over 'Buddha Bar' dinner






COLOMBO: Two hotel managers have been arrested in Sri Lanka for organising a "nirvana-style" dinner with "Buddha Bar" music that hurt the religious feelings of locals, police said Sunday.

The executives from a deluxe beach hotel at Beruwala, outside of the capital, were remanded in custody till Monday after allegations that their promotional material offended Buddhists, police spokesman Prisantha Jayakody said.

"The two managers were arrested on a charge of causing offence to Buddhists," Jayakody told AFP. "We took them into custody a few days ago and produced them before a magistrate after a complaint from a Buddhist monk."

The hotel management said an internal memo to staff described the dinner last week as a "nirvana-style" buffet with Buddha Bar music, but they meant no offence to any religious group.

Sri Lanka has slapped a de facto ban on albums of Buddha Bar, the trendy Paris nightspot known for its lounge music.

The majority Buddhist nation has also been sensitive to the use of Buddha images on clothing such as T-shirts and bikinis.

Sri Lanka's extreme nationalists who are mainly followers of Buddhism have stepped up a self-appointed role of religious police in recent months, causing tension among minorities on the island.

- AFP/ck



Read More..

The ultimate gall of a heartless iPhone thief



An object of desire?



(Credit:
CNET)


One should never expect justice in life.


The best one can hope for is poetry.


And yet, just once or twice, both manage to collide with a deliciousness that moves the soul.


Here is the tale of a teenage girl who had her iPhone stolen.



As The New York Times composes it, the girl had her
iPhone 4S ripped from her by a teenage boy in Brooklyn's notoriously difficult Prospect Park.


iPhone theft is rather popular in New York. Indeed, Mayor Bloomberg recently suggested that it's responsible for an increase in crime in the city.


Anyway, the iPhone-less girl collared a couple of policemen, but the miscreant was not to be found.


However, the thief then decided that he'd try to get some money for the phone. So he met a man on a Flatbush street -- as you do.


The man asked to take a look at the phone. Perhaps he wanted to see whether Siri was still inside.


Then, he ran off with it.


Yes, this is slightly poetic. But we've only just begun.


You see, the boy thief was not very happy. After all, he'd had his recently acquired property stolen. So he went off in search of a policeman to report the crime.


I pause for your sound effects.


Thank you.



More Technically Incorrect


The police reacted with unusual efficiency. They corralled both the boy and the man who had taken Siri from him. But they still assumed the boy was the victim.


Are you ready for verse three?


The phone rang. It was the girl trying to do a deal to get her phone back. The police realized something might be amiss here. This seemed to be a miss who actually owned the phone.


So they waited for her to arrive in Flatbush. She recognized the boy's sneakers. They were pink.


I pause for your further sound effects.


The police decided it was time to play Solomon. They would slice the phone in two if one party didn't renounce their claim to the phone.


No, wait. They asked both the girl and the pink-sneakered boy to unlock the phone with the PIN code.


You're already there, aren't you? Both the actual thieves were brought to justice -- the actual kind. And the girl got her phone back.


There are several morals to this story.


One, don't steal iPhones if you're wearing pink sneakers.


Two, if someone does unto you as you have done unto someone else, take it onto the chin. It will help you understand the feelings of others.


Three, if you're the kind of New Yorker who thinks they can always get away with it, well, you can't. Not always.


Read More..

Pictures: The Story Behind Sun Dogs, Penitent Ice, and More

Photograph by Art Wolfe, Getty Images

If you want the beauty of winter without having to brave the bone-chilling temperatures blasting much of the United States this week, snuggle into a soft blanket, grab a warm beverage, and curl up with some of these natural frozen wonders.

Nieve penitente, or penitent snow, are collections of spires that resemble robed monks—or penitents. They are flattened columns of snow wider at the base than at the tip and can range in height from 3 to 20 feet (1 to 6 meters). The picture above shows the phenomenon in central Chile. (See pictures of the patterns in snow and ice.)

Nieve penitente tend to form in shallow valleys where the snow is deep and the sun doesn't shine at too steep an angle, said Kenneth Libbrecht, a physicist at the California Institute of Technology in Pasadena who studies ice crystal formation.

As the snow melts, dirt gets mixed in with the runoff and collects in little pools here and there, he said. Since the dirt is darker in color than the surrounding snow, the dirty areas melt faster "and you end up digging these pits," explained Libbrecht.

"They tend to form at high altitude," he said. But other than that, no one really knows the exact conditions that are needed to form penitent snow.

"They're fairly strong," Libbrecht said. "People have found [the spires] difficult to hike through."

Jane J. Lee

Published January 25, 2013

Read More..

Squatter, Bank of America Battle for $2.5M Mansion













Bank of America is taking a Florida man to court after he attempted to use an antiquated state law to legally take possession of a $2.5 million mansion that is currently owned by the bank.


Andre "Loki" Barbosa has lived in a five-bedroom Boca Raton, Fla., waterside property since July, and police have reportedly been unable to remove him.


The Brazilian national, 23, who reportedly refers to himself as "Loki Boy," cites Florida's "adverse possession" law, in which a party may acquire title from another by openly occupying their land and paying real property tax for at least seven years.


The house is listed as being owned by Bank of America as of July 2012, and that an adverse possession was filed in July. After Bank of America foreclosed on the property last year, the Palm Beach County Property Appraiser's Office was notified that Barbosa would be moving in, according to the South Florida Sun-Sentinel.


The Sun-Sentinel reported that he posted a notice in the front window of the house naming him as a "living beneficiary to the Divine Estate being superior of commerce and usury."
On Facebook, a man named Andre Barbosa calls the property "Templo de Kamisamar."


After Barbosa gained national attention for his brazen attempt, Bank of America filed an injunction on Jan. 23 to evict Barbosa and eight unidentified occupants.










In the civil complaint, Bank of America said Barbosa and other tenants "unlawfully entered the property" and "refused to permit the Plaintiff agents entry, use, and possession of its property." In addition to eviction, Bank of America is asking for $15,000 in damages to be paid to cover attorney's expenses.


Police were called Dec. 26 to the home but did not remove Barbosa, according to the Sentinel. Barbosa reportedly presented authorities with the adverse possession paperwork at the time.


Mark Potok, a senior fellow at the Southern Povery Law Center, says police officers may be disinclined to take action even if they are presented with paperwork that is invalid.


"A police officer walks up to someone who is claiming a house now belongs to him, without any basis at all, is handed a big sheaf of documents, which are incomprehensible," Potok said. "I think very often the officers ultimately feel that they're forced to go back to headquarters and try to figure out what's going on before they can actually toss someone in the slammer."


A neighbor of the Boca property, who asked not be named, told ABCNews.com that he entered the empty home just before Christmas to find four people inside, one of whom said the group is establishing an embassy for their mission, and that families would be moving in and out of the property. Barbosa was also among them.


The neighbor said he believes that Barbosa is a "patsy."


"This young guy is caught up in this thing," the neighbor said. "I think it's going on on a bigger scale."


Barbosa could not be reached for comment.


The neighbor said that although the lights have been turned on at the house, the water has not, adding that this makes it clear it is not a permanent residence. The neighbor also said the form posted in the window is "total gibberish," which indicated that the house is an embassy, and that those who enter must present two forms of identification, and respect the rights of its indigenous people.


"I think it's a group of people that see an opportunity to get some money from the bank," the neighbor said. "If they're going to hold the house ransom, then the bank is going to have to go through an eviction process.


"They're taking advantage of banks, where the right hand doesn't know where the left hand is," the neighbor said. "They can't clap."



Read More..

Today on New Scientist: 25 January 2013







Hagfish gulped up in first video of deep-sea seal hunt

Watch the first sighting of a seal's underwater eating habits spotted by a teenager watching a live video feed



World's oldest portrait reveals the ice-age mind

A 26,000-year-old carved ivory head of a woman is not just an archaeological find - a new exhibition in London wants us to see works like this as art



Dung beetles navigate using the Milky Way

Forget the Pole Star: on moonless nights dung beetles use the Milky Way to follow a straight path with their dung ball



Stress's impact can affect future generations' genes

DNA analysis has yielded the first direct evidence that chemical marks which disable genes in response to stress can be passed on to offspring



Uncharted territory: Where digital maps are leading us

The way we use maps is evolving fast, says Kat Austen, and it will change a great deal more than how we navigate



Feedback: Tales of the stony turd industry

Fossilised faeces in Shitlington, confusing railway notices, organic water, and more



Duolingo gives language learning a jump start

First evidence that Duolingo, a new website that helps you learn a language while translating the web, actually works



Dolphins form life raft to help dying friend

A group of dolphins was caught on camera as they worked together to keep a struggling dolphin above water by forming an impromptu raft



Zoologger: Supercool squirrels go into the deep freeze

Hibernating Arctic ground squirrels drop their body temperatures to -4 °C, and shut their circadian clocks off for the winter



Greek economic crisis has cleared the air

The ongoing collapse of Greece's economy has caused a significant fall in air pollution, which can be detected by satellites



Body armour to scale up by mimicking flexible fish

Armour that is designed like the scales of the dragon fish could keep soldiers protected - while still letting them bend



Astrophile: Split personality tarnishes pulsars' rep

Pulsars were seen as cosmic timekeepers, but the quirky way in which one example shines suggests we can't take their behaviour for granted



Shrinking proton puzzle persists in new measurement

The most precise experiment yet to find the proton's radius confirms that it can appear smaller than our theories predict - is new physics needed?



Tight squeeze forces cells to take their medicine

A short sharp squash in these channels and a cell's membrane pops open - good news when you want to slip a molecule or nanoparticle in there




Read More..

Body of last Japanese victim in hostage crisis arrives in Tokyo






TOKYO: The body of the last of 10 Japanese nationals killed in the Algerian hostage crisis arrived in Japan on Saturday as the prime minister proposed setting up a security council to deal with future threats.

The body of Tadanori Aratani, 66, a former vice president of engineering firm JGC, arrived at Tokyo's Narita airport on a commercial flight accompanied by vice foreign minister Minoru Kiuchi.

The seven Japanese survivors of the siege at the In Amenas gas plant in the Sahara desert and the bodies of nine of the ten dead arrived a day earlier as Prime Minister Shinzo Abe spoke of the nation's "deepest grief".

Foreign Minister Fumio Kishida was at the airport on Saturday, along with JGC officials, to welcome back the body of Aratani. Flowers were laid on the coffin and mourners offered a one-minute silent prayer.

Dozens of foreigners were killed during a four-day standoff that ended in a bloody showdown with Algerian commandos last week, with reports of summary executions.

JGC employed, directly or indirectly, all the Japanese caught up in the siege.

Japan's body count of 10 is the highest of any nation whose citizens were caught up in the crisis and an unusual taste of Jihadist anger for a country that has remained far removed from US-led wars in the Muslim world.

Abe, at a meeting of his senior ministers on Friday, said the nation was in mourning for those killed, while at JGC headquarters in Yokohama, southwest of Tokyo, mourners paid respects in front of a makeshift altar.

In an interview with the Mainichi Shimbun published on Saturday, Abe proposed setting up a national security council to enable the government to take swifter action in times of crisis.

The plan to set up a Japanese version of the US National Security Council comes after the government struggled to collect information on the fate of Japanese nationals during Algeria siege.

"The function of the prime minister's office as a control tower should be strengthened," Abe said, adding that his government may submit legislation to parliament by July.

The aim is to improve the gathering of information relating to national security, enabling the government to take swifter action to reduce potential risks to national interests and its citizens overseas.

- AFP/fa



Read More..

Review: While "jOBS" fawns over subject, film falls flat



Ashton Kutcher as Steve Jobs in "jOBS."

Ashton Kutcher as Steve Jobs in "jOBS."



(Credit:
Five Star Feature Films)


PARK CITY, UTAH--The eagerly awaited biopic "jOBS" opens in 2001, when Apple's iconic co-founder arrives at Town Hall on Apple's Cupertino campus with good news. A secret team, Steve Jobs tells his employees, has built a product that will revolutionize the way everyone listens to music. Before he can even show them the iPod, the employees have sprung to their feet, wild-eyed and ecstatic, and their thunderous applause is eventually drowned out only by strings swelling in the background. It's a scene that sets the tone for all that is to follow: for most of the film's two hours, "jOBS" rarely stops clapping for its subject.


The team behind "jOBS," which was directed by Joshua Michael Stern, began working on the project shortly before Jobs retired from Apple in 2011. The script by first-time screenwriter Matt Whiteley covers Jobs' life from 1974, when Jobs attended classes at Reed College in Oregon, to 2001, when he announced the
iPod to Apple employees. Along the way "jOBS" covers most of the major milestones of its subject's time at Apple: the Apple I, the Apple II, the Lisa, and the Macintosh all are shown in development, as Jobs (a hard-working Ashton Kutcher) works to bring his vision of personal computing to the masses. Jobs hand-picks John Sculley to become Apple's CEO, hoping his marketing expertise will help the company overtake IBM in the PC market. But Sculley disappoints Jobs, who alienates his allies on Apple's board of directors and is ousted from the company he started. Only Apple's near-death experience in 1997 is enough to bring him back to Apple -- first as an adviser, then as an "interim" CEO -- and with the success of the Bondi blue iMacs, Apple was ascendant once again.


It's a story that will be familiar to readers of Walter Isaacson's recent Jobs biography or any number of other histories of the company. The opportunity "jOBS" had was to render these legendary events of Silicon Valley's history on screen, and to dramatize the contradictions of a man who remained unknowable even to some of those closest to him.


The movie gives it a shot. Kutcher drew skepticism when he was announced as the film's lead, despite an uncanny resemblance to the man he would be playing. But he throws himself into the role, inhabiting Jobs in his mannerisms and gestures while doing a more than creditable impression of the man's voice. Kutcher also captures Jobs' deliberate, slightly hunched-over walk. At moments, as during an enjoyable sequence in which Jobs recruits members for the Macintosh team, Kutcher disappears into the role.


The filmmakers do show Jobs being a jerk: he sleeps around, he yells at people, he parks in handicapped spaces. He persuades Steve Wozniak (Josh Gad) to perform crucial work for him, but lies about how much he is being paid, so he can dramatically underpay his best friend. An hour into the movie, he fires someone during an argument over font availability on the Lisa.


Yet the filmmakers are more interested in showing Jobs going about the work of being a genius. Over and over again, minor characters explain to him why something can't be done; Kutcher-as-Jobs smiles enigmatically and waves away their concerns. (It is left to someone else, far off screen, to turn his visions into reality.) We watch Jobs out-negotiate a computer parts store owner, lecture the team making the Lisa, and ride to the rescue of the Macintosh. Each time, he speaks of how the technology Apple is building will improve the lives of average people. Co-workers argue with him, but they never get anywhere, because their parts are poorly written and the filmmakers have no interest in showing their subject being wrong about his work. The film mentions Lisa's failure but has no interest in what part Jobs played in that failure; all Apple failures in "jOBS" are portrayed as the result of conservative, backward-thinking executives beholden only to their shareholders. The result is that the viewer spends two hours watching cardboard cutouts lose arguments to Ashton Kutcher.


Kutcher speaks fully 40 percent of the lines in "jOBS." Unfortunately, he has almost no one to play off of. Dermot Mulroney, as early Apple investor Mike Markkula, shakes his head at Jobs' excesses without ever really challenging him. J.K. Simmons, as the Apple board chairman who oversees Jobs' ouster, is a cartoon villain. Women in the film barely exist; an actress playing Chris-Ann Brennan has a single under-written scene informing a young Jobs that she is carrying his baby; years later in the film, a small scene shows Jobs at home with his wife. Only Gad, as Wozniak, gets a scene standing up to the great man -- as Woz quits Apple, he criticizes Jobs for losing his humanity amid a single-minded pursuit of making great products. It's something even Jobs' staunchest admirers have to wrestle with, and the film could have used more of that.


Others will write of the things "jOBS" omits, gets wrong, or simply avoids. My primary disappointment was in how shallow the film felt, given the extensive historical record. In the early days Jobs' co-workers had to wrestle with a man who smelled bad, who cried often, who yelled constantly, who missed deadlines, who overspent his budget by millions. He did it in service of products we love and use daily, and yet his obsessions took a toll on those around him. It also inspired others to do the best work of their lives, pushing themselves further than they ever imagined they can go. There is great drama to be found in all that, but it is not to be found in the saccharine "jOBS."


Read More..

Pictures: The Story Behind Sun Dogs, Penitent Ice, and More

Photograph by Art Wolfe, Getty Images

If you want the beauty of winter without having to brave the bone-chilling temperatures blasting much of the United States this week, snuggle into a soft blanket, grab a warm beverage, and curl up with some of these natural frozen wonders.

Nieve penitente, or penitent snow, are collections of spires that resemble robed monks—or penitents. They are flattened columns of snow wider at the base than at the tip and can range in height from 3 to 20 feet (1 to 6 meters). The picture above shows the phenomenon in central Chile. (See pictures of the patterns in snow and ice.)

Nieve penitente tend to form in shallow valleys where the snow is deep and the sun doesn't shine at too steep an angle, said Kenneth Libbrecht, a physicist at the California Institute of Technology in Pasadena who studies ice crystal formation.

As the snow melts, dirt gets mixed in with the runoff and collects in little pools here and there, he said. Since the dirt is darker in color than the surrounding snow, the dirty areas melt faster "and you end up digging these pits," explained Libbrecht.

"They tend to form at high altitude," he said. But other than that, no one really knows the exact conditions that are needed to form penitent snow.

"They're fairly strong," Libbrecht said. "People have found [the spires] difficult to hike through."

Jane J. Lee

Published January 25, 2013

Read More..

WH, Senators to Begin Push on Immigration Reform












The White House and a bipartisan group of senators next week plan to begin their efforts to push for comprehensive immigration reform.


President Barack Obama will make an announcement on immigration during a Tuesday trip to Las Vegas, Nevada, the White House said on Friday. The Senate group is expected make their plans public around the same time, the Associated Press reported.


See Also: Where Do Labor Unions Stand on Immigration?


For Obama, immigration reform is a campaign promise that has remained unfulfilled from his first White House run in 2008. During his 2012 re-election campaign, the president vowed to renew his effort to overhaul the nation's immigration system. It has long been expected that Obama would roll out his plans shortly after his inauguration.


The president's trip to Las Vegas is designed "to redouble the administration's efforts to work with Congress to fix the broken immigration system this year," the White House said.


Ever since November's election, in which Latino voters turned out in record numbers, Republicans and Democrats have expressed a desire to work on immigration reform. Obama has long supported a bill that would make many of the nation's 11 million undocumented immigrants without criminal records eligible to apply for an earned pathway to citizenship, which includes paying fines and learning English.






Charles Dharapak/AP Photo







But the debate over a pathway to citizenship is expected to be contentious. Other flashpoints in an immigration reform push could include a guest-worker program, workplace enforcement efforts, border security, and immigration backlogs.


In a statement, the White House said that "any legislation must include a path to earned citizenship."


Ahead of his immigration push next week, Obama met today with a group of lawmakers from the Congressional Hispanic Caucus (CHC), including chairman Rubén Hinojosa (D-Texas) , Sen. Bob Menendez (D-N.J.), Democratic Caucus Chair Rep. Xavier Becerra (D-Calif.), and CHC Immigration Task Force Chair Rep. Luis Gutierrez (D-Ill.), the latter's office said. CHC members are expected to play a pivotal role in the debate.


"The president is the quarterback and he will direct the team, call the play, and be pivotal if we succeed. I am very optimistic based on conversations with Republicans in the House and Senate that we will do more than just talk about the immigration issue this year," Gutierrez said in a statement following the CHC meeting with Obama. "The president putting his full weight and attention behind getting a bill signed into law is tremendously helpful. We need the president and the American people all putting pressure on the Congress to act because nothing happens in the Capitol without people pushing from the outside."


A bipartisan group of eight senators, which includes Menendez, has also begun talks on drafting an immigration bill and will play an integral part in the process of passing a bill through Congress. Sen. Marco Rubio (R-Fla.), who has been participating in talks with others senators, has also unveiled his own outline for an immigration proposal.


The group of senators have reportedly eyed Friday as the date when they'll unveil their separate proposal, according to the Washington Post.



Read More..