schwit1 writes: Scientists have found that, despite a complete ban since 2007, ozone-depleting chemicals are still being pumped into the atmosphere from some unknown source. "Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons that destroy ozone and contribute to the ozone hole over Antarctica. Parties to the Montreal Protocol reported zero new CCl4 emissions between 2007-2012. However, the new research shows worldwide emissions of CCl4 average 39 kilotons (about 43,000 U.S. tons) per year, approximately 30 percent of peak emissions prior to the international treaty going into effect. "We are not supposed to be seeing this at all," said Qing Liang, an atmospheric scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, and lead author of the study published online in the Aug. 18 issue of Geophysical Research Letters, a journal of the American Geophysical Union. "It is now apparent there are either unidentified industrial leakages, large emissions from contaminated sites, or unknown CCl4 sources."

Today's videos are parts three and four of our casual interview with Tim O'Reilly, founder of O'Reilly Media and one of the most influential open source boosters around. (You supplied the questions. He supplied the answers.) We had a lot more to say about Tim yesterday when we ran parts one and two of our video interview with him. (Today's alternate Video Links: Video 3 ~ Video 4; transcript covers both videos.)

An anonymous reader writes eBooks are great and wonderful, but as The Guardian reports, they might not be as good for readers as paper books. Results from a new study show that test subjects who read a story on a Kindle had trouble recalling the proper order of the plot events. Out of 50 test subjects, half read a 28-page story on the Kindle, while half read the same story on paper. The Kindle group scored about the same on comprehension as the control group, but when they were asked to put the plot points in the proper order, the Kindle group was about twice as likely to get it wrong.

So, is this bad news for ebooks? Have we reached the limits of their usefulness? Not necessarily. While there is evidence that enhanced ebooks don't enhance education, an older study from 2012 showed that students who study with an e-textbook on an ebook reader actually scored as well or higher on tests than a control group who did not. While that doesn't prove the newer research wrong, it does suggest that further study is required. What has your experience been with both recall and enjoyment when reading ebooks?

msm1267 writes: The keepers of Tor commissioned a study testing the defenses and viability of their Firefox-based browser as a privacy tool. The results (PDF) were a bit eye-opening since the report's recommendations don't favor Firefox as a baseline for Tor, rather Google Chrome. But Tor's handlers concede that budget constraints and Chrome's limitations on proxy support make a switch or a fork impossible.

darthcamaro writes: Linux has clawed its way into lots of places these days. But at the LinuxCon conference in Chicago today Linus Torvalds was asked where Linux should go next. Torvalds didn't hesitate with his reply. "I still want the desktop," Torvalds said, as the audience erupted into boisterous applause. Torvalds doesn't see the desktop as being a kernel problem at this point, either, but rather one about infrastructure. While not ready to declare a "Year of the Linux Desktop" he still expects that to happen — one day.

An anonymous reader writes: Researchers from UC San Diego, University of Michigan, and Johns Hopkins say they've found security vulnerabilities in full-body backscatter X-ray machines deployed to U.S. airports between 2009 and 2013. In lab tests, the researchers were able to conceal firearms and plastic explosive simulants from the Rapiscan Secure 1000 scanner, plus modify the scanner software so it presents an "all-clear" image to the operator even when contraband was detected. "Frankly, we were shocked by what we found," said lead researcher J. Alex Halderman. "A clever attacker can smuggle contraband past the machines using surprisingly low-tech techniques."

New submitter NBSCALIDBA writes: Eeva Haaramo reports on Helsinki's ambitious plan to transform city transportation. From on-demand buses to city bikes to Kutsuplus mini-transport vans, the Finnish capital is trying to change the whole concept of getting around in a city. "Under the plan, all these services will be accessed through a single online platform. People will be able to buy their transport in service packages that work like mobile phone tariffs: either as a complete monthly deal or pay as you go options based on individual usage. Any number of companies can use the platform to offer transport packages, and if users find their travel needs change, they'll be able to switch packages or moved to a rival with a better deal."

New submitter Randy-tanner (3791853) writes A well known New York architect & contractor has begun construction on what is possibly the largest 3D printing related project ever undertaken. He is 3D printing an entire estate, which includes an in-ground swimming pool, a pool house, and a huge 2400 square foot home. The project is expected to take two years to complete, and if all goes as planned the printer will automatically insert rebar into the concrete.