• Producing fuel from Canada oil sands emits 20 percent more CO2 than from U.S. crude

    In 2013, the oil industry was producing nearly two million barrels per day from Canadian oil sands. By 2030, that number is expected to rise to just over 4.8 million barrels per day. As the United States takes stock of its greenhouse gas emissions, scientists report that the current oil sands production of fuels from “well-to-wheels” releases about 20 percent more carbon dioxide into the atmosphere than making gasoline and diesel from conventional crudes.

  • Mass killings, school shootings are contagious

    On average, mass killings involving firearms occur approximately every two weeks in the United States, and school shootings occur on average monthly. Mass killings — events with four or more deaths — and school shootings create a period of contagion that lasts an average of thirteen days. Roughly 20 to 30 percent of such tragedies appear to arise from contagion. “The hallmark of contagion is observing patterns of many events that are bunched in time, rather than occurring randomly in time,” says a researcher.

  • U.S. military looking for ways to lighten the load infantrymen carry on missions

    Typically, an infantryman on a three-day mission will carry 80 to 100 pounds and often more, when the weight of the weapon, night vision equipment, extra batteries to power the advanced equipment, and body armor are added to the burden. When it comes to a one day combat patrol, the weight carried drops to a “mere” sixty-five pounds.The effects of such a burden not only slow the warfighters down, they reduce agility and my result in log-term harm. The military is looking for ways to lighten the load.

  • Our new anti-earthquake technology could protect cities from destruction

    Protecting cities from earthquakes is still a grand challenge that needs addressing, as recent disasters in Nepal, Japan, Haiti, and Chile confirm. Although significant progress has been made in understanding seismic activity and developing building technology, we still don’t have a satisfactory way of protecting buildings on a large scale. This is a serious problem, since large numbers of buildings that don’t have built-in protection exist in earthquake zones, particularly in developing countries where replacing them or introducing stricter — and more expensive — building codes aren’t seen as an option. Researchers have designed a novel vibrating barrier (ViBa) to reduce the vibrations of nearby structures caused by an earthquake’s ground waves. The device would be buried in the soil and detached from surrounding buildings, and should be able to absorb a significant portion of the dynamic energy arising from the ground motion with a consequent reduction of seismic response (between 40-80 percent).

  • If global warming is left unchecked, fish will have to find new habitats -- or perish

    The goods and services our oceans provide are valued at hundreds of billions of dollars per year. A new study assessed the impact of climate change on marine and coastal ecosystems, ocean chemistry, tourism, and human health. The study specifically analyzed how warming will impact fisheries and the global economic gains we receive from these fisheries. It found that Climate change is forcing fish out of their current habitats and into cooler waters and many more species will soon be affected if climate goals are not met. “From looking at the surface of the ocean, you can’t tell much is changing,” said one researcher. “The oceans are closely tied to human systems and we’re putting communities at high risk.”

  • President Obama honors outstanding mathematics and science teachers

    President Obama on Thursday named 108 mathematics and science teachers as recipients of the prestigious Presidential Award for Excellence in Mathematics and Science Teaching. The Presidential Award for Excellence in Mathematics and Science Teaching is awarded annually to outstanding K-12 science and mathematics teachers from across the country. “These teachers are shaping America’s success through their passion for math and science,” Obama said. “Their leadership and commitment empower our children to think critically and creatively about science, technology, engineering, and math. The work these teachers are doing in our classrooms today will help ensure that America stays on the cutting edge tomorrow.”

  • U.S. exposed in Arctic as a result of climate change: Military experts

    Senior former military commanders and security advisors warn that global warming is jeopardizing U.S. national security. They said that political gridlock in Washington over climate change has left the U.S. military exposed to Russia’s superior fleets in the Arctic, flooding in U.S. naval bases, and a more unstable world. “We’re still having debates about whether [climate change] is happening, as opposed to what we should do about it,” said a former undersecretary of defense. “We need to guard against the failure of imagination when it comes to climate change. Something is going to happen in the future years, and we’re not going to be prepared.”

  • Major Midwest flood risk underestimated by as much as five feet: Study

    As floodwaters surge along major rivers in the Midwestern United States, a new study suggests federal agencies are underestimating historic 100-year flood levels on these rivers by as much as five feet, a miscalculation that has serious implications for future flood risks, flood insurance, and business development in an expanding floodplain. Moreover, high-water marks are inching higher as global warming makes megafloods more common.

  • A new look for nuclear power

    Many experts cite nuclear power as a critical component of a low-carbon energy future. Nuclear plants are steady, reliable sources of large amounts of power; they run on inexpensive and abundant fuel; and they emit no carbon dioxide (CO2). A novel nuclear power plant that will float eight or more miles out to sea promises to be safer, cheaper, and easier to deploy than today’s land-based plants.

  • Our mostly dry planetary neighbors once had lots of water -- what does that imply for us?

    Our two closest solar system neighbors, Venus and Mars, once had oceans — planet-encircling, globe-girdling, Earth-like oceans, but neither Venus nor Mars could hold onto their water for long enough to nurture advanced life forms until they could flourish. The lessons from Venus and Mars are clear and simple: water worlds are delicate and fragile. Water worlds that can survive the ravages of aging, whether natural or inflicted by their inhabitants — and can nurture and sustain life over the long term — are rare and precious. If we allow the temperature of our planet to rise a degree or two, we may survive it as a minor environmental catastrophe. But beyond a few degrees, if we allow a runaway greenhouse effect to kick up the temperature a few more notches, do we know the point at which global warming sends our atmosphere into a runaway death spiral, turning Earth into Venus? We know what the endgame looks like.

  • Alumnus’s throwable tactical camera gets commercial release

    Unseen areas are troublesome for police and first responders: Rooms can harbor dangerous gunmen, while collapsed buildings can conceal survivors. Now Bounce Imaging, founded by an MIT alumnus, is giving officers and rescuers a safe glimpse into the unknown. In July, the Boston-based startup will release its first line of tactical spheres, equipped with cameras and sensors, which can be tossed into potentially hazardous areas to instantly transmit panoramic images of those areas back to a smartphone.

  • Eco-friendly oil spill solution developed

    Chemists have developed an eco-friendly biodegradable green “herding” agent that can be used to clean up light crude oil spills on water. Derived from the plant-based small molecule phytol abundant in the marine environment, the new substance would potentially replace chemical herders currently in use.

  • Sea-level rise threatens $40 billion of national park assets, historical and cultural infrastructure

    U.S. Secretary of the Interior Sally Jewell last week released a report revealing that national park infrastructure and historic and cultural resources totaling more than $40 billion are at high risk of damage from sea-level rise caused by climate change. The report was conducted by scientists from the National Park Service and Western Carolina University and is based on an examination of forty parks — about one-third of those considered threatened by sea-level rise — and the survey is on-going.

  • U.S. Cyber Challenge Eastern Regional Competition announces winner

    On Friday, participants of the annual U.S. Cyber Challenge (USCC) Eastern Regional Cyber Camp competed in a “Capture-the-Flag” competition to demonstrate their knowledge and skill of cybersecurity and compete to win one of a limited number of (ISC)2 scholarships. Participants of Eastern Regional Cyber Camp were selected based in part on their scores from Cyber Quests, an online competition offered through USCC in April, which drew more than 1,300 registrants from over 600 schools nationwide.

  • UNC-Chapel Hill launches Coastal Resilience Center of Excellence

    The University of North Carolina at Chapel Hill officially launched its new Coastal Resilience Center of Excellence (CRC), made possible through a Department of Homeland Security (DHS) Science and Technology Directorate, Office of University Programs five-year, $20 million grant. The CRC initiative led by UNC-Chapel Hill will include collaboration with more than a dozen partner universities to address the challenges facing communities across the United States which are vulnerable to coastal hazards.