New research suggests that in addition to being one of history's cruelest conquerors, Genghis Khan may have been the greenest. It is estimated that the Mongol leader's invasions unintentionally scrubbed almost 700 million tons of carbon from the atmosphere. From the article: "Over the course of the century and a half run of the Mongol Empire, about 22 percent of the world's total land area had been conquered and an estimated 40 million people were slaughtered by the horse-driven, bow-wielding hordes. Depopulation over such a large swathe of land meant that countless numbers of cultivated fields eventually returned to forests. In other words, one effect of Genghis Khan's unrelenting invasion was widespread reforestation, and the re-growth of those forests meant that more carbon could be absorbed from the atmosphere." I guess everyone has their good points.

An anonymous reader writes with this quote from Eurogamer: "Gamers who download upcoming PC exclusive The Witcher 2 illegally could receive a letter demanding they pay a fine or face legal action. If gamers refuse to pay the fine, which will be more than the cost of the game, they could end up in court, developer CD Projekt told Eurogamer. 'Of course we're not happy when people are pirating our games, so we are signing with legal firms and torrent sneaking companies,' CD Projekt co-founder Marcin Iwiski said. 'In quite a few big countries, when people are downloading it illegally they can expect a letter from a legal firm saying, "Hey, you downloaded it illegally and right now you have to pay a fine." We are totally fair, but if you decide you will not buy it legally there is a chance you'll get a letter. We are talking about it right now.' Interestingly, The Witcher 2 will be released free of digital rights management – but only through the CD Projekt-owned digital download shop GOG.com. That means owners will be able to install it as many times as they like on any number of computers – and it will not requite an internet connection to run."

sciencehabit writes "To find out if certain dance moves are more attractive to women than others, researchers recruited a bunch of college guys and used motion-capture to create avatars of them dancing. When women watched the avatars (2 videos included in story), the men they found most attractive were those who kept their heads and torsos moving without flailing their arms and legs. The researchers say dancing is thus an honest signal to women of the man's strength and health, just as it is in crabs and hummingbirds, who also move in special ways to attract mates."

Zerocool3001 writes "The recently featured 36-hour port of the original Palm version of Lemmings to the iPhone and Palm Pre has received a cease and desist letter from Sony. Only one day after submitting the app for approval on the two app stores, the developer has put up a post stating that he 'did this as a tribute to the game — we can only hope that Sony actually does a conversion for platforms like iPhone and Palm Pre in the near future.' The text of the cease and desist letter is available from the developer's website."

PSandusky writes "A report issued by the Lower Merion School District's chosen law firm blames the district's IT department for the laptop webcam spying scandal. In particular, the report mentions lax IT policies and record-keeping as major problems that enabled the spying. Despite thousands of e-mails and images to the contrary, the report also maintains that no proof exists that anyone in IT viewed images captured by the webcams."

Everyone knows that George Washington couldn't tell a lie. What you probably didn't know is that he couldn't return a library book on time. From the article: "New York City's oldest library says one of its ledgers shows that the president has racked up 220 years' worth of late fees on two books he borrowed, but never returned. One of the books was the 'Law of Nations,' which deals with international relations. The other was a volume of debates from Britain's House of Commons. Both books were due on Nov. 2, 1789."

Amanda Flowers always liked her Wii Fit but now she can't get enough of it. Amanda claims a fall from her balance board damaged a nerve and has left her suffering from persistent sexual arousal syndrome. From the article: "The catering worker said: 'It began as a twinge down below before surging through my body. Sometimes it built up into a trembling orgasm.' A doctor diagnosed her with persistent sexual arousal syndrome due to a damaged nerve."

jasonbrown writes "Apple on Thursday began removing another category of apps from its iPhone App Store. This time, it's not porn, it's Wi-Fi. Apple removed several Wi-Fi apps commonly referred to as stumblers, or apps that seek out available Wi-Fi networks near your location. According to a story on Cult of Mac, apps removed by Apple include WiFi-Where, WiFiFoFum, and yFy Network Finder."

Hugh Pickens writes "The LA Times reports that Orange County officials are locked in a legal battle with a couple accused of violating city ordinances for replacing the grass on their lawn with wood chips and drought-tolerant plants, reducing their water usage from 299,221 gallons in 2007 to 58,348 gallons in 2009. The dispute began two years ago, when Quan and Angelina Ha tore out the grass in their front yard. In drought-plagued Southern California, the couple said, the lush grass had been soaking up tens of thousands of gallons of water — and hundreds of dollars — each year. 'We've got a newborn, so we want to start worrying about her future,' said Quan Ha, an information technology manager for Kelley Blue Book. But city officials told the Has they were violating several city laws that require that 40% of residential yards to be landscaped predominantly with live plants. Last summer, the couple tried to appease the city by building a fence around the yard and planting drought-tolerant greenery — lavender, rosemary, horsetail, and pittosporum, among others. But according to the city, their landscaping still did not comply with city standards. At the end of January, the Has received a letter saying they had been charged with a misdemeanor violation and must appear in court. The couple could face a maximum penalty of six months in jail and a $1,000 fine for their grass-free, eco-friendly landscaping scheme. 'It's just funny that we pay our taxes to the city and the city is now prosecuting us with our own money,' says Quan Ha."

ccktech writes "As reported by NPR and Chemistry world, the journal Science has a paper by David Ehre, Etay Lavert, Meir Lahav, and Igor Lubomirsky [note: abstract online; payment required to read the full paper] of Israel's Weizmann Institute, who have figured out a way to freeze pure water by warming it up. The trick is that pure water has different freezing points depending on the electrical charge of the surface it resides on. They found out that a negatively charged surface causes water to freeze at a lower temperature than a positively charged surface. By putting water on the pyroelectric material Lithium Tantalate, which has a negative charge when cooler but a positive change when warmer; water would remain a liquid down to -17 degrees C., and then freeze when the substrate and water were warmed up and the charge changed to positive, where water freezes at -7 degrees C."

e3m4n writes "The fictitious 'good samaritan' law from the final episode of Seinfeld (the one that landed them in jail for a year) appears to be headed toward reality for California residents after the house passed this bill. There are some differences, such as direct action is not required, but the concept of guilt by association for not doing the right thing is still on the face of the bill."