• Scientists identify a human-caused climate change signal in the noise

    By comparing simulations from twenty different computer models to satellite observations, Lawrence Livermore climate scientists and colleagues from sixteen other organizations have found that tropospheric and stratospheric temperature changes are clearly related to human activities; “No known mode of natural climate variability can cause sustained, global-scale warming of the troposphere and cooling of the lower stratosphere,” says Livernore atmospheric scientist Benjamin Santer

  • Innovative method to capture CO2

    The carbonate-looping method for capturing carbon dioxide (CO2) could reduce power-plant CO2 emissions by more than 90 percent, while utilizing less energy and incurring less expense than former approaches

  • Detection aircraft surveys 600 miles of PG&E California pipeline for gas leaks

    PG&E’s transmission pipeline is routinely surveyed each year, typically by ground crews; accessing rural areas with difficult terrain, however, can be time consuming, expensive, and unsafe for crews on the ground; aerial surveys often look for dead vegetation as an indicator of gas leaks

  • Sea-levels rising faster than IPCC projections

    Sea-levels are rising 60 percent faster than the Intergovernmental Panel on Climate Change’s (IPCC) central projections, new research suggests; the study involved an analysis of global temperatures and sea-level data over the past two decades, comparing them both to projections made in the IPCC’s third and fourth assessment reports

  • Synthetic fuels could entirely eliminate U.S. need for crude oil, create new economy

    The United States could eliminate the need for crude oil by using a combination of coal, natural gas, and non-food crops to make synthetic fuel, a team of researchers has found; besides economic and national security benefits, the plan has potential environmental advantages; because plants absorb carbon dioxide to grow, the United States could cut vehicle greenhouse emissions by as much as 50 percent in the next several decades using non-food crops to create liquid fuels

  • Part One: Don’t blame the security guard at Y-12

    On 28 July 2012, using only wire cutters and flashlights, peace activist Sister Susan Rice, 82 years of age, and two other confederates – both senior citizens themselves — successfully bypassed the elaborate, and expensive, security system around Y-12 National Security Complex at Oak Ridge, Tennessee; though the lone security guard at Y-12 has become a convenient scapegoat, it now appears that the breach reflects system-wide security and safety concerns at nuclear facilities under the National Nuclear Security Administration (NNSA); the breach is best understood as the end result of long standing management and organizational failures within and between DOE, NNSA, and NNSA’s private contractors; the NNSA, in fact, appears burdened by many of the same issues it was created in 2000 to resolve

  • “Intra-seasonal” variability in sea-level change

    The effects of storm surge and sea-level rise have become topics of everyday conversation in the days and weeks following Hurricane Sandy’s catastrophic landfall along the mid-Atlantic coast; new research is throwing light on another, less-familiar component of sea-level variability — the “intra-seasonal” changes that occupy the middle ground between rapid, storm-related surges in sea level and the long-term increase in sea level due to global climate change

  • American West's changing climate means economic changes, too

    The State of the West Symposium, hosted by the Bill Lane Center for the American West and the Stanford Institute for Economic Policy Research, featured a discussion of the Western United States’ future of extreme heat, declining snowpack, and what it all means for the region’s industry, electricity generation, and policy

  • Blame, responsibility, and demand for change following floods

    New research shows concerns about governmental failure to act effectively and fairly in the aftermath of extreme weather events can affect the degree to which residents are willing to protect themselves; the findings could prove key to establishing how society should evolve to cope with more turbulent weather and more frequent mega storms

  • DHS awards $23.6 million to fund development of new software analysis technology

    DHS awarded a $23.6 million grant to the Morgridge Institute for Research at the University of Wisconsin-Madison to create the Software Assurance Marketplace, which, over the next five years, will work closely with developers of new software analysis technology and the open source community to advance the security of software; initial operating capabilities for the Software Assurance Marketplace will include the ability continuously to test up to 100 open-source software packages against five software assurance tools on eight platforms, including Macintosh, Linux, and Windows

  • Water resources management in a changing world

    Visualize a dusty place where stream beds are sand and lakes are flats of dried mud; are we on Mars? In fact, we are on arid parts of Earth, a planet where water covers some 70 percent of the surface; how long will water be readily available to nourish life here? In the United States, more than thirty-six states face water shortages; other parts of the world are faring no better

  • World’s great rivers running on empty

    Four of the world’s great rivers are all suffering from drastically reduced flows as a direct result of water extraction, according to new research; the researchers found that in all four river basins, over a long period of time, outflows have greatly reduced as a direct result of increased water extractions, and that urgent changes in governance of water are needed to ensure the systems remain healthy and viable

  • Tetrapod robot developed for investigative, recovery work inside post-accident nuclear plants

    Toshiba has developed a tetrapod robot able to carry out investigative and recovery work in locations which are too risky for people to enter; the multiple joints of its legs are controlled by a dedicated movement algorithm which enables the robot to walk on uneven surfaces, avoid obstacles, and climb stairs, securing access into areas which are challenging to be reached by wheeled robots or crawlers

  • Student invents a wireless vibration sensor which harvests energy from earthquakes

    A wireless vibration sensor being developed by an engineering student could provide a low-cost solution for engineers to monitor the damage of buildings affected by earthquakes; currently, no sensor exists in the marketplace which does not rely on batteries or electricity supply to run

  • New method to rid inboxes of unsolicited e-mail

    Spam used to be text-based, but has recently turned high-tech, using layers of images to fool automatic filters; thanks to some sophisticated new cyber-sleuthing, researchers at are working toward a cure