Mall Gunman Identified as Jacob Tyler Roberts

The masked gunman who killed two people in the crowded Clackamas Town Center mall in suburban Portland, Ore., was identified today as Jacob Tyler Roberts.

Roberts, 22, was armed with a stolen AR-15 semi-automatic weapon, Sheriff Craig Roberts told a news conference today. He was not wearing a bullet-proof vest as previously reported.

Earlier today the sheriff told "Good Morning America" the gunman was intent on killing "as many people as possible."

The shooter, wearing a white hockey mask, black clothing and a bullet proof vest, tore through the mall just before 3:30 p.m. Tuesday, entering through a Macy's store and heading to the food court and public areas spraying bullets, according to witness reports.

"We have been able to identify the shooter over this last night," Roberts said. "I believe, at least from the information that's been provided to me at this point in time, it really was a killing of total strangers. To my knowledge at this point in time he was really trying, I think, to kill as many people as possible."

Police said today that Roberts had stolen the gun from someone he knew, and was equipped with a load bearing vest and "several" fully loaded magazines. Police are still trying to determine how many shots were fired.

The shooting victims were identified as Cindy Ann Yuille, 54, and Steven Mathew Forsyth, 45.

Yuille's family released a statement today calling Yuille a "wonderful person."

"Cindy was everybody's friend, she was a wonderful person, she was very caring and put others first," the family said, noting that they needed time to grieve their loss.

Forsyth, who owned a business at the mall, was described as a married father of two who an active member of his community.

"Steven Matthew Forsyth was a loving husband, a father of two children, a son, a brother, an uncle, a longtime youth sports coach and friend to the many people that had the privilege to meet him," the family said in a statement.
"Steve was one of most passionate people, with an entrepenurial spirit that led him to start his business," they said, noting he had a "zest for life, a vision and belief in others that brought great joy.."

"He will be sorely missed by those that knew him," they said.

The injured victim, identified by hospital officials as Kristina Shevchenko, 15, was taken to a hospital and has undergone an initial surgery, according to a Facebook page set up by her family members. Family members said a bullet bruised her lung but avoided piercing any major organs.

Craig Mitchelldyer/Getty Images

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PHOTOS: Oregon Mall Shooting

Police said today that Roberts parked his car outside of the Macy's department store at the mall, entered the mall on the second floor, and then "moved quickly" toward the food court, firing shots. Both victims were hit by bullets near the food court, police said. Other shoppers provided medical aid to the victims.

Roberts' gun jammed briefly while shooting at the food court, but he was able to continue shooting after it resumed working, police said.

Roberts then ran down a hallway and a flight of stairs to the first floor of the mall, near an REI store, where he apparently shot himself, police said.

Shevchenko was hit on the second floor but made it outside to the first floor, where she met police and was transproted to the hospital, police said.

Police searched Roberts' home and car in the wake of the shooting, but did not disclose what they found. They confirmed that his fingerprints matched prints in a law enforcement database, though they did not find any crimes he was convicted of.

Sheriff Craig Roberts said that he believed that the gun jamming, in addition to the quick response of mall employees to enact lockdown procedures, prevented more individuals from being shot and killed during the spree.

The sheriff said that the first calls of gunshots came in at 3:29 p.m. and the first police officers to respond arrived at the mall at 3:30 p.m.

"Officers initiated an active shooter protocol, a technique we train with, and equipped each of our officers to move to immediately engage the threat wherever it might be. We were well prepared for this incident. We had practiced active shooter techniques at Clackamas Town Center earlier this year, we had practiced for just this type of situation," Sheriff Roberts said.

Witnesses from the shooting rampage said that a young man who appeared to be a teenager, ran through the upper level of Macy's to the mall food court, firing multiple shots, one right after the other, with what is believed to be a black, semi-automatic rifle.

By 4:40 p.m., police reported finding a group of people hiding in a storeroom. In a surreal moment, even the mall Santa was seen running for his life.

"I didn't know where the gunman was, so I decided to kind of eased my way out," said the mall Santa, who the AP identified as 68-year-old Brance Wilson.

More than 10,000 shoppers were at the mall during the day, according to police. Roberts said that officers responded to the scene of the shooting within minutes, and four SWAT teams swept the 1.4 million-square-foot building searching for the shooter. He was eventually found dead, an apparent suicide.

"I can confirm the shooter is dead of an apparent self-inflicted gunshot wound," Rhodes said. "By all accounts there were no rounds fired by law enforcement today in the mall."

Roberts said more than 100 law enforcement officers responded to the shooting, and the FBI and Bureau of Alcohol, Tobacco and Firearms are working with local agencies to trace the shooter's weapon.

Cell phone video shot at the scene shows the chaos soon after the shooting. When police arrived they were met head on by terrified shoppers, children and employees streaming out. Customers, even a little girl, were being lead out with their hands up.

"I think a variety of things happened that I think this could have been much, much worse," Roberts told "GMA." "And to give you some ideas, we got the call at 3:29, we had someone on scene within a minute, 30 seconds.

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Today on New Scientist: 11 December 2012

Out-of-season's greetings from the Arctic frost flowers

Season's regards from an icy meadow in the Arctic, but it's no winter wonderland and please don't dash out into it

How hacking a mosquito's heart could eradicate malaria

Watch how a double-pronged trick helps mosquitoes remain healthy while carrying disease, a process that could be exploited to eliminate malaria

New drug lifts hard-to-treat depression in hours

A new class of drugs that changes the way neurons interact in the brain can rapidly lift people out of depression

E. O. Wilson and poet laureate on altruism and mystery

Leading evolutionary biologist E. O. Wilson and former US poet laureate Robert Hass discuss free will, wilderness and the mysterious origin of the arts

Souped-up immune cells force leukaemia into remission

Genetically engineered white blood cells have been shown to have a strong impact on leukaemia after just three months

War of words: The language paradox explained

If language evolved for communication, how come most people can't understand what most other people are saying?

AC/DC's Highway to Hell sent via a drone's laser beam

A dose of rock music proves that a drone's reconnaisance data can be sent via reflected laser beam instead of radio

'Biology is a manufacturing capability'

Soon we'll be able to engineer living things with mechanical precision, says Tom Knight, father of synthetic biology

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UN Security Council condemns Mali PM arrest

UNITED NATIONS: The UN Security Council on Tuesday condemned the arrest of Mali's prime minister by the armed forces and renewed a threat to impose sanctions on those who threaten the country's "constitutional order."

UN leader Ban Ki-moon is also "troubled" by the new turmoil in the African nation, where Islamist militants and rebels have taken over half the country, his spokesman said.

"The members of the Security Council condemn the arrest, on December 10, 2012, of the prime minister of Mali, Mr Cheick Modibo Diarra, by members of the Malian Armed Forces," said a council statement.

The 15-nation body said the action contravenes repeated UN calls for the Malian military to stop interfering in the west African nation's transition.

"The members of the Security Council express their readiness to consider appropriate measures, including targeted sanctions, against those who prevent the restoration of the constitutional order and take actions that undermine stability in Mali," added the statement.

The UN council called on interim president Dioncounda Traore to "swiftly reappoint an inclusive government of national unity."

Islamists and rebels took over the northern half of Mali in March, taking advantage of a military coup in Bamako. Despite the appointment of an interim government the army has been accused of continually holding on to power.

Cheick Modibo Diarra quit Tuesday under pressure from the coup leaders, who oppose a foreign-aided military intervention to drive out Islamists.

The UN council stressed its "commitment to authorizing as soon as possible the deployment of an African-led international support mission in Mali."

France is drawing up a resolution giving a mandate to an international force. But negotiations have been prolonged by United States opposition to sending just an African-led force to Mali.

UN spokesman Martin Nesirky said UN leader Ban Ki-moon was also "troubled by what happened in Mali." The spokesman said the arrest "underscores the need for political stability" in the country.

-AFP/ac

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Apple fixes Mac Mini video flicker with firmware update

Apple has released a firmware update that addresses a problem in which displays would flicker to black when used with the 2012 Mac Mini.

The problem, which we reported on in late November, was assumed to be related to one outlined by Intel involving its integrated HD 4000 graphics and a rumor arising from statements made by Intel representatives (which were later changed) that this was a driver-based issue that had been fixed and it would only be a matter of time for manufacturers like Apple to test and release updated drivers.

Rather than drivers, however, yesterday Apple issued an EFI firmware update for affected systems. The update is a small 4.53MB download that should be available through Software Update for relevant systems, but can also be downloaded from the Apple Support Web page and applied manually.

After the installation is complete, the
Mac's firmware version should be 0106.03, which can be seen in the Hardware section of the System Information utility in OS X.

As always, be sure to back up your system before installing this or any other update. The update will require a restart when applied, and as it's a firmware update you should be sure the system is connected to a reliable power source and then follow all onscreen instructions carefully when installing.

---

Questions? Comments? Have a fix? Post them below or !
Be sure to check us out on Twitter and the CNET Mac forums.

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U.K. Dash for Shale Gas a Test for Global Fracking

Thomas K. Grose in London

The starting gun has sounded for the United Kingdom's "dash for gas," as the media here have dubbed it.

As early as this week, a moratorium on shale gas production is expected to be lifted. And plans to streamline and speed the regulatory process through a new Office for Unconventional Gas and Oil were unveiled last week in the annual autumn budget statement by the chancellor of the exchequer, George Osborne.

In the U.K., where all underground mineral rights concerning fossil fuels belong to the crown, hydraulic fracturing, or fracking, could unlock a new stream of government revenue as well as fuel. But it also means that there is no natural constituency of fracking supporters as there is in the United States, birthplace of the technology. In the U.S., concerns over land and water impact have held back fracking in some places, like New York, but production has advanced rapidly in shale basins from Texas to Pennsylvania, with support of private landowners who earn royalties from leasing to gas companies. (Related: "Natural Gas Stirs Hope and Fear in Pennsylvania")

A taste of the fight ahead in the U.K. came ahead of Osborne's speech last weekend, when several hundred protesters gathered outside of Parliament with a mock 23-foot (7-meter) drilling rig. In a letter they delivered to Prime Minister David Cameron, they called fracking "an unpredictable, unregulatable process" that was potentially toxic to the environment.

Giving shale gas a green light "would be a costly mistake," said Andy Atkins, executive director of the U.K.'s Friends of the Earth, in a statement. "People up and down the U.K. will be rightly alarmed about being guinea pigs in Osborne's fracking experiment. It's unnecessary, unwanted and unsafe."

The government has countered that natural gas-fired power plants would produce half the carbon dioxide emissions of the coal plants that still provide about 30 percent of the U.K.'s electricity. London Mayor Boris Johnson, viewed as a potential future prime minister, weighed in Monday with a blistering cry for Britain to "get fracking" to boost cleaner, cheaper energy and jobs. "In their mad denunciations of fracking, the Greens and the eco-warriors betray the mindset of people who cannot bear a piece of unadulterated good news," he wrote in the Daily Telegraph. (Related Quiz: "What You Don't Know About Natural Gas")

Energy Secretary Edward Davey, who is expected this week to lift the U.K.'s year-and-a-half-old moratorium on shale gas exploration, said gas "will ensure we can keep the lights on as increasing amounts of wind and nuclear come online through the 2020s."

A Big Role for Gas

If the fracking plan advances, it will not be the first "dash for gas" in the U.K. In the 1980s, while Prime Minister Margaret Thatcher battled with mining unions, she undercut their clout by moving the nation toward generating a greater share of its electricity from natural gas and less from coal. So natural gas already is the largest electricity fuel in Britain, providing 40 percent of electricity. (Related Interactive: "World Electricity Mix")

The United Kingdom gets about 10 percent of its electricity from renewable energy, and has plans to expand its role. But Davey has stressed the usefulness of gas-fired plants long-term as a flexible backup source to the intermittent electricity generated from wind and solar power. Johnson, on the other hand, offered an acerbic critique of renewables, including the "satanic white mills" he said were popping up on Britain's landscape. "Wave power, solar power, biomass—their collective oomph wouldn't pull the skin off a rice pudding," he wrote.

As recently as 2000, Great Britain was self-sufficient in natural gas because of conventional gas production in the North Sea. But that source is quickly drying up. North Sea production peaked in 2000 at 1,260 terawatt-hours (TWH); last year it totaled just 526 TWh.

Because of the North Sea, the U.K. is still one of the world's top 20 producers of gas, accounting for 1.5 percent of total global production. But Britain has been a net importer of gas since 2004. Last year, gas imports—mainly from Norway, Belgium, and the Netherlands—accounted for more than 40 percent of domestic demand.

The government hopes to revive domestic natural gas production with the technology that has transformed the energy picture in the United States—horizontal drilling into deep underground shale, and high-pressure injection of water, sand, and chemicals to create fissures in the rock to release the gas. (Related Interactive: "Breaking Fuel From the Rock")

A Tougher Road

But for a number of reasons, the political landscape is far different in the United Kingdom. Britain made a foray into shale gas early last year, with a will drilled near Blackpool in northwest England. The operator, Cuadrilla, said that that area alone could contain 200 trillion cubic feet of gas, which is more than the known reserves of Iraq. But the project was halted after drilling, by the company's own admission, caused two small earthquakes. (Related: "Tracing Links Between Fracking and Earthquakes" and "Report Links Energy Activities To Higher Quake Risk") The April 2011 incident triggered the moratorium that government now appears to be ready to lift. Cuadrilla has argued that modifications to its procedures would mitigate the seismic risk, including lower injection rates and lesser fluid and sand volumes. The company said it will abandon the U.K. unless the moratorium is soon lifted.

A few days ahead of Osborne's speech, the Independent newspaper reported that maps created for Britain's Department of Energy and Climate Change (DECC) showed that 32,000 square miles, or 64 percent of the U.K. countryside, could hold shale gas reserves and thus be open for exploration. But a DECC spokeswoman said "things are not quite what it [the Independent story] suggests." Theoretically, she said, those gas deposits do exist, but "it is too soon to predict the scale of exploration here." She said many other issues, ranging from local planning permission to environmental impact, would mean that some tracts would be off limits, no matter how much reserve they held. DECC has commissioned the British Geological Survey to map the extent of Britain's reserves.

Professor Paul Stevens, a fellow of the Royal Institute of International Affairs, said the U.K. is clearly interested in trying to replicate America's shale gas revolution. "That's an important part of the story," he said, but trying to use the American playbook won't be easy. "It's a totally different ballgame." In addition to the fact that mineral rights belong to the crown, large expanses of private land that are commonplace in America don't exist in England. Just as important, there is no oil- and gas-service industry in place in Britain to quickly begin shale gas operations here. "We don't have the infrastructure set up," said Richard Davies, director of the Durham Energy Institute at Durham University, adding that it would take years to build it.

Shale gas production would also likely ignite bigger and louder protests in the U.K. and Europe. "It's much more of a big deal in Europe," Stevens said. "There are more green [nongovernmental organizations] opposed to it, and a lot more local opposition."

In any case, the U.K. government plans to move ahead. Osborne said he'll soon begin consultations on possible tax breaks for the shale gas industry. He also announced that Britain would build up to 30 new natural gas-fired power plants with 26 gigawatts (GW) of capacity. The new gas plants would largely replace decommissioned coal and nuclear power plants, though they would ultimately add 5GW of additional power to the U.K. grid. The coalition government's plan, however, leaves open the possibility of increasing the amount of gas-generated electricity to 37GW, or around half of total U.K. demand.

The U.S. Energy Information Administration (EIA) estimates that Europe may have as much as 600 trillion cubic feet of shale gas that could be recovered. But Stevens said no European country is ready to emulate the United States in producing massive amounts of unconventional gas. They all lack the necessary service industry, he said, and geological differences will require different technologies. And governments aren't funding the research and development needed to develop them.

Globally, the track record for efforts to produce shale gas is mixed:

• In France, the EIA's estimate is that shale gas reserves total 5 trillion cubic meters, or enough to fuel the country for 90 years. But in September, President Francois Hollande pledged to continue a ban on fracking imposed last year by his predecessor, Nicolas Sarkozy.
• Poland was also thought to have rich shale gas resources, but initial explorations have determined that original estimates of the country's reserves were overstated by 80 percent to 90 percent. After drilling two exploratory wells there, Exxon Mobil stopped operations. But because of its dependence on Russian gas, Poland is still keen to begin shale gas production.
• South Africa removed a ban on fracking earlier this year. Developers are eyeing large shale gas reserves believed to underlie the semidesert Karoo between Johannesburg and Cape Town.
• Canada's Quebec Province has had a moratorium on shale gas exploration and production, but a U.S. drilling company last month filed a notice of intent to sue to overturn the ban as a violation of the North American Free Trade Agreement.
• Germany's Environment Ministry has backed a call to ban fracking near drinking water reservoirs.
• China drilled its initial shale gas wells this year; by 2020, the nation's goal is for shale gas to provide 6 percent of its massive energy needs. The U.S. government's preliminary assessment is that China has the world's largest "technically recoverable" shale resources, about 50 percent larger than stores in the United States. (Related: "China Drills Into Shale Gas, Targeting Huge Reserves")

This story is part of a special series that explores energy issues. For more, visit The Great Energy Challenge.

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Video of Columbus Circle Killer Released

The hunt for New York's Columbus Circle killer took on a new impetus today as police released surveillance video showing the killer moments before he calmly walked up to Brandon Lincoln Woodard and put one bullet from a silver colored handgun into the back of the Los Angeles man's head in full view of holiday shoppers.

The video confirms the details of the hit man's calculated wait for his victim as first reported on ABCNews.com on Monday.

"In the video, the gunman wanted in the shooting death yesterday of Brandon Lincoln Woodard, 31, of Los Angeles, is seen 10 minutes before the shooting," Deputy Commissioner for Public Information Paul Browne said in a statement today.

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Woodard, who is described by police as linked to the hip hop part of the Los Angeles entertainment industry, was strolling down 58th Street near the southern end of Central Park when he was gunned down.

"The shooter, who appears to be bald and may have a beard, exited a late model Lincoln sedan, initially bare-headed, but soon pulled the hood of his jacket over his head. Ten minutes later, at approximately 2 p.m., the shooter walked up behind Woodard and fired," Browne said.

In a grainy still image also released, the gunman is seen behind Woodard a moment before the shooting, pulling the weapon from his jacket.

Just before he was shot, Woodard turned "instinctively almost," then turned back to his portable electronic device, police told ABC News.

Sources tell ABC News that Woodard was arrested in 2009 in connection with a robbery in California.

Woodard was raised in Los Angeles' Ladera Heights neighborhood and attended the private Campbell Hall High School, they said. He attended college and law school at Loyola Marymount College in Los Angeles, law enforcement sources and friends said.

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Doha summit launches climate damage aid

The latest summit to stop climate change, held in Doha, Qatar, over the past two weeks has been roundly slammed. Little was agreed to curb greenhouse gas emissions and the latest modelling, carried out by the Climate Action Tracker consortium shows global averages temperatures are still set to rise by at least 3 °C above pre-industrial levels.

There was one breakthrough: developing countries won a promise from developed ones that they would compensate them for losses and damage caused by climate change. The deal offers the promise of large amounts of climate aid. But first, science will have to catch up with politics.

All countries will suffer from climate change. There will be consequences even if humanity slashed its emissions and stopped temperatures rising more than 2 °C above pre-industrial levels, the stated goal of the UN negotiations. In actual fact, with emissions rising faster than ever, a 3 or 4 °C rise is likely this century.

The consequences will be manifold. Deserts will spread and lethal heatwaves become more frequent. Changes in rainfall will bring droughts, floods and storms, while rising seas will swamp low-lying areas, obliterating valuable territory. Food production will fall.

Before Doha kicked off, the charities ActionAid, CARE International and WWF released a report arguing that rich countries should compensate poor countries for such damages. Tackling the Limits to Adaptation points out that climate change will cost countries dearly, both economically and in less tangible ways such as the loss of indigenous cultures.

Two-pronged approach

So far, climate negotiations have taken a two-pronged approach to the problem. On the one hand, they have sought to create incentives or imperatives to cut emissions. On the other, they have established a pot of money for poor countries to pay for measures that will help them fend off the unavoidable consequences of climate change – such as sea walls and irrigation systems.

That, according to some, leaves a third element missing. Helping those who suffer the consequences of climate change is a moral obligation and must be part of any treaty on climate change, says Niklas Höhne of renewable energy consultancy Ecofys. The idea of climate compensation has been around since the early 1990s, when the United Nations Framework Convention on Climate Change was negotiated.

In Doha, a coalition including China, the Alliance of Small Island States and the G77 group of developing countries pushed for it to revived.

They proposed a scheme that would decide when countries had suffered climate harms, and compensate them. It would be a form of insurance, and the greatest international aid scheme ever. The idea gained momentum after Typhoon Bopha struck the Philippines last week, and that country's negotiator Naderev "Yeb" Saño broke down in tears during a speech. And, although developed nations had little incentive to agree, the conference concluded with a promise to set something up next year.

Compensation poses a fundamental challenge to climate science, which still struggles to work out if trends and events are caused by greenhouse gases or would have happened anyway. "We can't say that an individual event was caused by climate change," says Nigel Arnell of the University of Reading, UK. "What we can do is say that the chance of it happening was greater."

Systematic tests

Some climatologists are now running systematic tests to decide whether extreme weather events are caused by climate change. They run climate models with and without humanity's emissions. If the odds of a particular event are different, it suggests it was at least partially driven by emissions. By this measure, the 2003 European heatwave and 2011 Texas drought were both made more likely by human emissions.

But this science is in its infancy. We can confidently attribute large-scale trends and temperature changes, says Kevin Trenberth of the National Center for Atmospheric Research in Boulder, Colorado. But changes in rainfall, and short-term events like hurricanes, are harder because we do not really understand them. Trenberth speculates that superstorm Sandy would not have flooded the New York subways without climate change, but says it's not possible to prove.

Arnell says that might prove unworkable. Gradual changes – such as rising sea levels, melting glaciers and ocean acidification – are easy to attribute to climate change but their consequences difficult to cost; sudden events are easy to cost but difficult to attribute.

There may be another possibility. Rather than examining individual events, climate models could predict the extra climate-related costs each country would experience, allowing regular payouts. "That would be a way round it," says Arnell. Delegates at next year's conference will have to consider these questions.

Positive step

Harjeet Singh of ActionAid in New Delhi, India, calls the Doha deal "a positive step forward". But it is only an agreement in principle: no money was committed, and even a promise to do so in the future was left out of the final text. Edward Davey, the UK's secretary of state for energy and climate change, said it was "far too early" to talk about committing money. "We aren't saying there should be compensation," he said.

Singh says the developed world would save money by cutting emissions now, rather than letting temperatures rise and then paying compensation. Small island states were keen to get an agreement on loss and damage because emissions cuts are going so slowly, making dangerous climate change almost certain. The Doha agreement is a first step towards dealing with the consequences of that failure.

On 'other business'

Aside from agreeing to make compensation available for loss and damage, the Doha summit achieved little. Nearly two decades ago, the world's governments set out to agree a binding deal to cut greenhouse gas emissions. Doha included some baby steps towards a deal in 2015, but that is not guaranteed and in any case will come too late to stop dangerous climate change. Only Lebanon and the Dominican Republic made new emissions pledges.

The talks were bogged down in rows over financing. In a deal that was separate to the adaptation fund, developed countries had promised in 2009 to deliver $100 billion a year by 2020 to help poor nations prepare for climate change. Between 2009 and 2012 they allocated $10 billion a year. In Doha they refused to say how they would scale that up, simply promising to "continue" – leaving developing countries unsure if or when they would get more.

The Kyoto protocol was renewed until 2020, but its global effect is likely to be limited. Its value is partly symbolic, to show that binding agreements can be reached, and as one of many small and medium-scale projects to cut emissions.

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.

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7.1 quake hits eastern Indonesia, no tsunami threat: USGS

JAKARTA: A major 7.1-magnitude earthquake shook eastern Indonesia's Maluku islands Tuesday but there was no tsunami alert, the US Geological Survey said.

The quake hit at 1653 GMT some 365 kilometres (226 miles) south-southeast of Ambon in the Maluku islands at a relatively deep 157 kilometres, it said, revising its strength down slightly from an initial measurement of 7.2.

Indonesian government seismologists put it at 7.4 but said it would not trigger a tsunami because its epicentre was so deep in the Banda Sea.

"We have not received any damage report so far," Suhardjono, head of the quake and tsunami unit at the Indonesian Meteorology, Climatology and Geophysics Agency, told AFP.

The quake was felt only weakly in the districts of North Halamahera and Morotai which were closest to the epicentre, the National Disaster Mitigation Agency said in an update.

Indonesia sits on the Pacific "Ring of Fire" where continental plates collide, causing frequent seismic and volcanic activity.

-AFP/ac

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Looks like dismal voter turnout to end Facebook's quasi democracy

So much for a quasi-democratic Facebook. So far, the social network's users haven't cast anywhere near enough votes to preserve users' ability to veto Facebook's policy changes.

Facebook users have until noon today to vote on Facebook's recently proposed policy changes relating to data use and privacy. Unless at least 30 percent of Facebook's membership -- or around 300 million users -- cast ballots, Facebook said it will abolish voting altogether. So far, only 600,000 users have voted. So unless there's a surge between now and noon -- or the independent auditor hired to double-check the count finds an extra 2.4 million votes somewhere -- the Facebook  vote will be history.

Facebook developed the voting model in 2009 to solicit feedback from users about the network's frequent changes. But, Facebook argues, it's outgrown that system -- it's now a publicly traded company that has to answer to a range of regulatory issues.

Facebook made some efforts to promote the vote. The company enabled users to share their vote with their friends in hopes of getting more people to vote, and held a live Q&A session with Facebook's privacy team to answer questions (one user who submitted a question didn't event know there was a vote going on).

Despite those efforts, it seems most users still don't know, or care, about the vote.

Here are some of the policy changes voters are considering:

• New tools for managing your Facebook Messages -- replacing the "Who can send you Facebook messages" setting with new filters for managing incoming messages.


• Changes to how Facebook refers to certain products, like instant personalization.


• Reminders about what's visible to other people on Facebook. For instance, when you hide things from your timeline, those posts are visible elsewhere, like in news feed, on other people's timelines, or in search results.


• Tips on managing your timeline. For example, you can use tools on your timeline or activity log to delete your own posts, or you can ask someone else to delete a post in which you're tagged.

If you do care and just missed out the hubbub, you can cast your vote here.

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Plants Grow Fine Without Gravity

When researchers sent plants to the International Space Station in 2010, the flora wasn't meant to be decorative. Instead, the seeds of these small, white flowers—called Arabidopsis thaliana—were the subject of an experiment to study how plant roots developed in a weightless environment.

Gravity is an important influence on root growth, but the scientists found that their space plants didn't need it to flourish. The research team from the University of Florida in Gainesville thinks this ability is related to a plant's inherent ability to orient itself as it grows. Seeds germinated on the International Space Station sprouted roots that behaved like they would on Earth—growing away from the seed to seek nutrients and water in exactly the same pattern observed with gravity. (Related: "Beyond Gravity.")

Since the flowers were orbiting some 220 miles (350 kilometers) above the Earth at the time, the NASA-funded experiment suggests that plants still retain an earthy instinct when they don't have gravity as a guide.

"The role of gravity in plant growth and development in terrestrial environments is well understood," said plant geneticist and study co-author Anna-Lisa Paul, with the University of Florida in Gainesville. "What is less well understood is how plants respond when you remove gravity." (See a video about plant growth.)

The new study revealed that "features of plant growth we thought were a result of gravity acting on plant cells and organs do not actually require gravity," she added.

Paul and her collaborator Robert Ferl, a plant biologist at the University of Florida in Gainesville, monitored their plants from the Kennedy Space Center in Florida using images sent from the space station every six hours.

Root Growth

Grown on a nutrient-rich gel in clear petri plates, the space flowers showed familiar root growth patterns such as "skewing," where roots slant progressively as they branch out.

"When we saw the first pictures come back from orbit and saw that we had most of the skewing phenomenon we were quite surprised," Paul said.

Researchers have always thought that skewing was the result of gravity's effects on how the root tip interacts with the surfaces it encounters as it grows, she added. But Paul and Ferl suspect that in the absence of gravity, other cues take over that enable the plant to direct its roots away from the seed and light-seeking shoot. Those cues could include moisture, nutrients, and light avoidance.

"Bottom line is that although plants 'know' that they are in a novel environment, they ultimately do just fine," Paul said.

The finding further boosts the prospect of cultivating food plants in space and, eventually, on other planets.

"There's really no impediment to growing plants in microgravity, such as on a long-term mission to Mars, or in reduced-gravity environments such as in specialized greenhouses on Mars or the moon," Paul said. (Related: "Alien Trees Would Bloom Black on Worlds With Double Stars.")

The study findings appear in the latest issue of the journal BMC Plant Biology.

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