Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
Earth

US Climate Report Says Global Warming Impact Already Severe 627

Hugh Pickens DOT Com writes: "Darryl Fears reports in the Washington Post on the U.S. government's newest national assessment of climate change. It says Americans are already feeling the effects of global warming. The assessment carves the nation into sections and examines the impacts: More sea-level rise, flooding, storm surge, precipitation and heat waves in the Northeast; frequent water shortages and hurricanes in the Southeast and Caribbean; more drought and wildfires in the Southwest. 'Residents of some coastal cities see their streets flood more regularly during storms and high tides. Inland cities near large rivers also experience more flooding, especially in the Midwest and Northeast. Insurance rates are rising in some vulnerable locations, and insurance is no longer available in others. Hotter and drier weather and earlier snow melt mean that wildfires in the West start earlier in the spring, last later into the fall, and burn more acreage. In Arctic Alaska, the summer sea ice that once protected the coasts has receded, and autumn storms now cause more erosion, threatening many communities with relocation.' The report concludes that over recent decades, climate science has advanced significantly and that increased scrutiny has led to increased certainty that we are now seeing impacts associated with human-induced climate change. 'What is new over the last decade is that we know with increasing certainty that climate change is happening now. While scientists continue to refine projections of the future, observations unequivocally show that climate is changing and that the warming of the past 50 years is primarily due to human-induced emissions of heat-trapping gases.'"
The Media

Ask Slashdot: What Online News Is Worth Paying For? 361

schnell writes "The increasing prevalence of online news paywalls and 'nag walls' (e.g. you can only read so many articles per month) has forced me to divide those websites into two categories: those that offer content that is unique or good enough to pay for vs. those that don't. Examples of the former for me included The Economist and Foreign Policy, while other previous favorite sites The New York Times and even my hometown Seattle Times have lost my online readership entirely. I also have a secret third category — sites that don't currently pay/nag wall, but I would pay for if I had to — Ars Technica and Long Form come to mind. What news/aggregation sites are other Slashdotters out there willing to pay for, and why? What sites that don't charge today would you pay for if you had to? Or, knowing this crowd, are the majority just opposed to paying for any web news content on principle?"
Science

Polar Vortex Sends Life-Threatening Freeze To US 684

Hugh Pickens DOT Com writes "Reuters reports that the Midwestern United States is shivering through the region's lowest temperatures in twenty years as forecasters warn that life-threatening cold is heading eastward as a polar vortex of freezing Arctic weather sweeps across the United States. 'The coldest temperatures in almost two decades will spread into the northern and central U.S. today behind an arctic cold front,' says the National Weather Service. 'Combined with gusty winds, these temperatures will result in life-threatening wind chill values as low as 60 degrees below zero (Fahrenheit/minus 51 degrees Celsius).' The coldest temperature reported in the lower 48 states on Sunday was minus 40 F (-40 C) in the towns of Babbitt and Embarrass, Minnesota. Meteorologists warn that the wind-chill factor could make it feel twice as cold, causing frostbite to exposed parts of the body within minutes. Eleven people have already died in weather-related incidents in the past week, including a 71-year-old woman with Alzheimer's who wandered from her home in upstate New York and was found frozen to death only 100m away. Polar vortexes occur seasonally at the North Pole, and their formation resembles that of hurricanes in more tropical regions: fast-moving winds build up around a calm center. Unlike a hurricane, these are frigid polar winds, circling the Arctic at more than 100 miles per hour. The spinning winds typically trap this cold air in the Arctic. But the problem comes when the polar vortex weakens or splits apart, essentially flinging these cold wind patterns out of the Arctic and into our backyards. 'All the ingredients are there for a near-record or historic cold outbreak,' says meteorologist Ryan Maue. 'If you're under 40, you've not seen this stuff before.'"
Math

Banker Offers $1M To Solve Beal Conjecture 216

oxide7 writes "A Texas banker with a knack for numbers has offered $1 million for anyone who can solve a complex math equation that has stumped mathematicians since the 1980s. The Beal Conjecture states that the only solutions to the equation A^x + B^y = C^z, when A, B and C are positive integers, and x, y and z are positive integers greater than two, are those in which A, B and C have a common factor. Like most number theories, it's "easy to say but extremely difficult to prove.""
Movies

Happy Culture Freedom Day! 45

Blug_fred writes "For the second edition, today is the time to celebrate Culture Freedom Day. While not as popular as HFD or SFD, celebrating Free Culture involves finding Free Culture artists, inviting them to your place and having them perform, display or talk about what their creation(s). Of course you can always simply project a couple of Free Culture movies and launch a discussion about their business models. Either way you can find all the happening for today here on the map and we sincerely hope there will be something of interest near you."
Censorship

California Lawmaker Wants 3-D Printers To Be Regulated 856

New submitter phrackthat writes with news that California State Senator Leland Yee (D-S.F.) says he wants regulations to track who owns and uses 3-D printers. Yee's comments come in response to the recent news of Defense Distributed's successful test-firing of a 3-D printed gun. "He's concerned that just about anyone with access to those cutting-edge printers can arm themselves. 'Terrorists can make these guns and do some horrible things to an individual and then walk away scott-free, and that is something that is really dangerous,' said Yee. He said while this new technology is impressive, it must be regulated when it comes to making guns. He says background checks, requiring serial numbers and even registering them could be part of new legislation that he says will protect the public. Yee added, 'This particular gun has no trace whatsoever.'"
Science

Washington's Exploding Manholes Explained? 112

sciencehabit writes "Researchers who mapped methane concentrations on the streets of the nation's capital found natural gas leaks everywhere, at concentrations of up to 50 times the normal background levels. The leaking gas wastes resources, enhances ozone production, and exacerbates global warming—not to mention powering the city's infamous exploding manholes. Most of the natural gas we burn for heat and on stovetops in the United States is methane, a simple carbon atom surrounded by four hydrogens. Carbon dioxide gets more press, but methane is the more powerful agent of global warming, 21 times more effective than carbon dioxide at trapping heat in the atmosphere. And methane levels are rising fast. Methane levels in the atmosphere were just 650 parts per billion a century ago, versus 1800 ppb today."
Science

Researchers Create Ultrastretchable Wires Using Liquid Metal 94

hypnosec writes "By using liquid metal researchers have created wires that can stretch up to eight times their original length while retaining their conduction properties. Scientists over at North Carolina State University made the stretchable wires by filling in a tube made out of an extremely elastic polymer with gallium and an indium liquid metal alloy."
Hardware

Ask Slashdot: What To Do With Over 500 Used DIMMs? 291

An anonymous reader writes "My company is pursuing a RAM upgrade, resulting in 500+ used DDR3 4GB DIMMs. What could this be used for? Are there any cheap products on the market which can take a huge number of DIMMs? Is there a worthy cause we should donate the gear to?"
Stats

Greenhouse Emissions Drop Less During Economic Downturn Than Expected 87

An anonymous reader writes with a quick bite from Nature World News: "The contribution of economic decline in reducing greenhouse gas emissions is very low, reveals a new study. Researcher Richard York of the University of Oregon studied data collected between 1960 and 2008 from more than 150 nations in order to analyze the impact of economic decline on greenhouse gas emissions." From the paper: "In Model 2, the percentage of the population living in urban areas and the percentage of GDP from the manufacturing sector were included as control variables. This model has lower data coverage than Model 1 (154 versus 160 nations, and 4,134 versus 5,630 nation-year observations) owing to missing data on the control variables. The coefficients, at 0.752 for growth and 0.346 for decline, are similar to those from Model 1 and, as in Model 1, are both significantly different from 0 and significantly different from each other."
Education

Chicago Teachers Rip 'Big Money Interest Groups' 404

theodp writes "The striking Chicago Teachers Union (CTU) is holding a massive 'Wisconsin-style rally' Saturday as ongoing negotiations try to bring an end to the strike that has put education on hold for 350,000 of the city's schoolchildren. 'The 30,000 teachers, school social workers, clerks, vision and hearing testers, school nurses, teaching assistants, counselors, and other school professionals of the Chicago Teachers Union are standing strong to defend public education from test pushers, privatizers, and a national onslaught of big money interest groups trying to push education back to the days before teachers had unions,' explains the CTU web site. 'Around the country and even the world, our fight is recognized as the front line of resistance to the corporate education agenda.' Some are calling the strike — which has by most accounts centered on salary schedules (CPS salary dataset), teacher performance evaluations, grievance procedures, and which teachers get dibs on new jobs — a push-back to education reform that has possible Presidential election implications. The big winners in the school strike, Bloomberg reports, are the city's largely non-union 100+ charter schools, which remained open throughout the strike. Charter school enrollment swelled to 52,000 students this fall as parents worried by strike rumors sought refuge in schools like those run by the Noble Charter Network, which enjoys the deep-pocket support of many wealthy 'investors.'"
Canada

Police Probing Theft of Millions of Pounds of Maple Syrup From Strategic Reserve 399

An anonymous reader writes with this bit from the Globe and Mail: "Quebec police are on the hunt for a sticky-fingered thief after millions of dollars of maple syrup vanished from a Quebec warehouse. The theft was discovered during a routine inventory check last week at the St-Louis-de-Blandford warehouse, where the syrup is being held temporarily. The Federation of Quebec Maple Syrup Producers, which is responsible for the global strategic maple syrup reserve, initially kept the news quiet, hoping it would help police solve the crime quickly."
Businesses

Is Innovation the Most Abused Word In Business? 287

dcblogs writes "Most of what is called innovation today is mere distraction, according to a paper by economist Robert Gordon, written for the National Bureau of Economic Research. Real innovations involve things like the combustion engine or air conditioning, not the smartphone. The paper includes thought experiments to help you gain more respect for genuine innovations such as indoor plumbing. The Financial Times has posted the complete 25-page paper.(pdf)"
Medicine

Genetically Engineering Babies a Moral Obligation, Says Ethicist 840

Hugh Pickens writes "The Telegraph reports that Oxford Professor Julian Savulescu, an expert in practical ethics, says that creating so-called designer babies could be considered a 'moral obligation' as it makes them grow up into 'ethically better children' and that we should actively give parents the choice to screen out personality flaws in their children such as potential alcoholism, psychopathy and disposition to violence as it means they will then be less likely to harm themselves and others. 'Surely trying to ensure that your children have the best, or a good enough, opportunity for a great life is responsible parenting?' writes Savulescu, editor-in-chief of the Journal of Medical Ethics. 'So where genetic selection aims to bring out a trait that clearly benefits an individual and society, we should allow parents the choice. To do otherwise is to consign those who come after us to the ball and chain of our squeamishness and irrationality.' Savulescu says that we already routinely screen embryos and fetuses for conditions such as cystic fibrosis and Down's syndrome and couples can test embryos for inherited bowel and breast cancer genes. 'Whether we like it or not, the future of humanity is in our hands now. Rather than fearing genetics, we should embrace it. We can do better than chance.'"
NASA

Hubble Discovers 5th Moon of Pluto 137

Stirling Newberry writes "This image shows 'P5,' the placeholder name for a fifth natural moon of Pluto, a tiny sliver that orbits ~29,000 miles from its primary in a circular orbit. Other than Charon, Hubble has been the means by which astronomers have found all of the known moons of Pluto. 'The new detection will help scientists navigate NASA’s New Horizons spacecraft through the Pluto system in 2015, when it makes an historic and long-awaited high-speed flyby of the distant world. The team is using Hubble’s powerful vision to scour the Pluto system to uncover potential hazards to the New Horizons spacecraft. Moving past the dwarf planet at a speed of 30,000 miles per hour, New Horizons could be destroyed in a collision with even a BB-shot-size piece of orbital debris.'"

Slashdot Top Deals

"Don't discount flying pigs before you have good air defense." -- jvh@clinet.FI

Working...