• Geoengineer the planet? More scientists now say it must be an option

    Once seen as spooky sci-fi, geoengineering to halt runaway climate change is now being looked at with growing urgency. A spate of dire scientific warnings that the world community can no longer delay major cuts in carbon emissions, coupled with a recent surge in atmospheric concentrations of CO2, has left a growing number of scientists saying that it’s time to give the controversial technologies a serious look. Fred Pearce writes in Yale Environment 360 that among the technologies being considered are a range of efforts to restrict solar radiation from reaching the lower atmosphere, including spraying aerosols of sulphate particles into the stratosphere, and refreezing rapidly warming parts of the polar regions by deploying tall ships to pump salt particles from the ocean into polar clouds to make them brighter.

  • Truth prevails: Sandy Hook father’s victory over conspiracy theory crackpots

    Noah Pozner, then 6-year old, was the youngest of twenty children and staff killed at Sandy Hook Elementary School in Connecticut. Last week, his father, Lenny Pozner, won an important court victory against conspiracy theorists who claimed the massacre had been staged by the Obama administration to promote gun control measures. The crackpots who wrote a book advancing this preposterous theory also claimed that Pozner had faked his son’s death certificate as part of this plot.

  • Identifying a fake picture online is harder than you might think

    Research has shown that manipulated images can distort viewers’ memory and even influence their decision-making. So the harm that can be done by fake images is real and significant. Our findings suggest that to reduce the potential harm of fake images, the most effective strategy is to offer more people experiences with online media and digital image editing – including by investing in education. Then they’ll know more about how to evaluate online images and be less likely to fall for a fake.

  • International community unprepared to deal with catastrophic biological event

    The risks of a global catastrophic biological event are growing, intensified by an increasingly interconnected world, terrorist and state interest in weapons of mass destruction, global political instability, and rapid advances in biotechnology. International leaders and organizations today are unprepared to react with the kind of effective, coordinated response needed to investigate and identify the pathogen, prevent the spread of disease, and, most importantly, save lives.

  • How climate change impacts the economy

    Warmer temperatures, sea level rise and extreme weather will be deleterious to the U.S. economy: Rising temperatures damage property and critical infrastructure, impact human health and productivity, and negatively affect sectors such as agriculture, forestry, fisheries, and tourism. The demand for energy will increase as power generation becomes less reliable, and water supplies will be stressed. Damage to other countries around the globe will also affect U.S. business through disruption in trade and supply chains.

  • Conspiracy theories and the people who believe in them: Book review

    In Conspiracy Theories and the People Who Believe in Them, Joseph Uscinski presents a collection that brings together contributors to offer an wide-ranging take on conspiracy theories, examining them as historical phenomena, psychological quirks, expressions of power relations an political instruments. While this is an interesting and expansive volume, it overlooks the conundrum posed by conspiracy theories that succeed in capturing the epistemological authorities.

  • “Vaccinating” algorithms against attacks on machine learning

    Algorithms “learn” from the data they are trained on to create a machine learning model that can perform a given task effectively without needing specific instructions, such as making predictions or accurately classifying images and emails. Researchers have developed a world-first set of techniques to effectively “vaccinate” algorithms against adversarial attacks, a significant advancement in machine learning research.

  • Mining the future

    China is set to dominate the next Industrial Revolution. A fight between the United States and China is brewing over 5G and the question of who can be trusted to control the world’s wireless infrastructure. But scant attention is being paid to an issue of arguably greater importance to the future of the world’s economy and security: China’s control of the raw materials necessary to the digital economy. No new phone, tablet, car, or satellite transferring your data at lightning speed can be made without certain minerals and metals that are buried in a surprisingly small number of countries, and for which few commonly found substitutes are available. Foreign Policy analysts write in a special report that Chinese firms, operating in niche markets with limited transparency and often in politically unstable countries, have locked up supplies of these minerals and metals with a combination of state-directed investment and state-backed capital, making long-term strategic plays, sometimes at a loss. Through in-depth analysis of company reports and disclosures, mapping of deal flows, quantification of direct and indirect equity stakes, and other primary research, FP Analytics has produced the first consolidated review of this unprecedented concentration of market power. Without rhetoric or hyperbole, this fact-based analysis reveals how rapidly and effectively China has executed its national ambitions, with far-reaching implications for the rest of the world.

  • Mass surveillance is coming to a city near you

    The tech entrepreneur Ross McNutt wants to spend three years recording outdoor human movements in a major U.S. city, KMOX news radio reports. Conor Friedersdorf writes in The Atlantic that if that sounds too dystopian to be real, you’re behind the times. McNutt, who runs Persistent Surveillance Systems, was inspired by his stint in the Air Force tracking Iraqi insurgents. He tested mass-surveillance technology over Compton, California, in 2012. In 2016, the company flew over Baltimore, feeding information to police for months (without telling city leaders or residents) while demonstrating how the technology works to the FBI and Secret Service.

  • NIST updates to help defend sensitive information from cyberattack

    An update to one of the National Institute of Standards and Technology’s (NIST) information security documents offers strategies to help protect sensitive information that is stored in computers supporting critical government programs and high value assets. The new companion publication offers enhanced security for information stored in critical programs and assets.

  • Shoe scanner may improve airport security

    The types of shoes you wear when flying matter. And not just shoe types. Size, material, soles and heels are also very important. Why? Shoes can become dangerous vehicles for terrorists’ plots. DHS wants to prevent future incidents, and this is why S&T is working on a millimeter wave technology for screening shoes as part of the larger Screening at Speed Program.

  • New technology to measures WMD threat exposures

    Researchers are looking to find molecular signatures in blood that identify previous exposures and time of exposure to materials that could be associated with weapons of mass destruction (including infectious agents, chemicals, and radiation). The epigenome is biology’s record keeper, and Epigenetic technology will provide a new tool in the fight against the proliferation of weapons of mass destruction.

  • Optimizing use of future wave electricity generators during disaster

    When hurricanes strike, loss of electricity ranks as one of the top concerns for relief workers. Blackouts lasting a week or more can hamper recovery efforts, shutter hospitals, threaten public health and disrupt transportation. The months-long effort to restore power to Puerto Rico following the 2017 hurricane season has led to renewed interest in finding innovative ways to get affected power grids back online. Researchers look to develop a strategy for how floating devices that harness the energy of the oceans’ waves might be able to provide this much needed aid.

  • Satellite observations help in earthquake monitoring, response

    Researchers have found that data gathered from orbiting satellites can provide more accurate information on the impact of large earthquakes, which, in turn, can help provide more effective emergency response.

  • As global temperatures climb, risk of armed conflict likely to increase substantially

    As global temperatures climb, the risk of armed conflict is expected to increase substantially, according to experts across several fields. Synthesizing views across experts, the study estimates climate has influenced between 3 percent and 20 percent of armed conflict risk over the last century and that the influence will likely increase dramatically.