• The U.S. Is Trying to Reclaim Its Rare-Earth Mantle

    Rare earths elements (REEs) are used in cancer treatment and electric engines, telescope lenses and TVs, cellphones and fighter jets. Many REEs are extracted and refined almost entirely in China. The U.S. was 100% net import reliant on rare-earth elements in 2018, importing an estimated 11,130 metric tons of compounds and metals valued at $160 million. The Department of Energy is funding research to make separating rare earths easier and more efficient, and to promote recycling. “There is a clock ticking in the background of this race for a rare-earth supply chain. There is a danger that the electric vehicle market, which will demand large quantities of critical minerals including rare earths, may move faster than the rare-earth supply chain, which would feed it,” Sabri Ben-Achour writes.

  • Hydropower’s Evolving Value to the Grid and Energy Storage

    Across the United States, hydroelectric dams are capturing energy from river water to create electricity that powers everything from street lights to mega industrial plants. Hydropower represents 41 percent of all renewable energy generated across the nation and is a key element of a flexible, resilient electric grid. But in some parts of the country, operations at dams are changing.

  • Crashing Chinese Rocket Highlights Growing Dangers of Space Debris

    This weekend, a Chinese rocket booster, weighing nearly 23 tons, came rushing back to Earth after spending more than a week in space—the result of what some critics have attributed to poor planning by China. The event has shown the potential dangers that come from humanity’s expanding presence in space.

  • A Dangerous Fire Season Looms as the Drought-Stricken Western U.S. Heads for a Water Crisis

    Just about every indicator of drought is flashing red across the western U.S. after a dry winter and warm early spring. The snowpack is at less than half of normal in much of the region. Reservoirs are being drawn down, river levels are dropping and soils are drying out. It’s only May, and states are already considering water use restrictions to make the supply last longer.

  • New Biodefense Lab to Focus on Food Security

    The University of Nebraska has launched a 5-year project to help safeguard the U.S. food supply. The project will address agricultural and natural resources security, defense, and countermeasures; biological defense in support of the U.S. Department of Defense, Department of Homeland Security and other government stakeholders; development and deployment of biosurveillance, biodetection and diagnostic tools; and pandemic preparedness related to human, livestock and crop plant diseases that could result in disruptions to the U.S. and global food systems.

  • Tracking Drones in Urban Settings

    As drones become more popular and more worrisome from a security standpoint, many projects have sought to engineer systems to spot them. Engineers are using machine learning and radar to detect drones in complicated urban settings.

  • Detecting Conspiracy Theories on Social Media

    Conspiracy theories circulated online via social media contribute to a shift in public discourse away from facts and analysis and can contribute to direct public harm. Social media platforms face a difficult technical and policy challenge in trying to mitigate harm from online conspiracy theory language. Researchers are working to improvemachine learning to detect and understand online conspiracy theories.

  • Claims of Microwave Attacks Are Scientifically Implausible

    Allegations about microwave attacks on U.S. personnel have been reported regularly, some going back decades. The recent wave of reports started in 2016, with reports from the American and Canadian diplomatic missions in Havana, hence the name “Havana syndrome.” “Here’s the problem,” Cheryl Rofer writes. “Aside from the reported syndromes, there’s no evidence that a microwave weapon exists—and all the available science suggests that any such weapon would be wildly impractical. It’s possible that the symptoms of all the sufferers of Havana syndrome share a single, as yet unknown, cause; it’s also possible that multiple real health problems have been amalgamated into a single syndrome.”

  • Seeking Inclusive Strategies to Help Coastal Communities Adjust, Plan for Sea-Level Rise

    Recurring flood damage to homes and powerful storms that threaten infrastructure are realities facing many coastal North Carolina communities. However, for three predominately African-American, rural communities near the coast, NC State researchers documented additional injustices that threaten the communities’ ability to adapt to a changing climate.

  • Antarctica Remains the Wild Card for Sea-Level Rise Estimates

    Estimates show that limiting global warming to 1.5 degrees C above pre-industrial temperatures would cut projected 21st century sea-level rise from land ice in half, relative to currently pledged emissions reductions.

  • Protecting Critical Energy Infrastructure

    Increasingly, both Israel and the U.S. face costly cyberattacks that can cause severe damage to critical energy infrastructure. A new consortium will develop, integrate, and test technologies, and demonstrate high value cyberattack mitigation technologies on the energy infrastructure, using data analytics, artificial intelligence, and machine learning.

  • E-Waste and National Security

    End-of-life circuit boards, certain magnets in disc drives and electric vehicles, EV and other special battery types, and fluorescent lamps are among several electrical and electronic products containing critical raw materials (CRMs), the recycling of which should be made law, says a new report.

  • Coral Reefs Prevent More than $5.3 Billion in Potential Flood Damage for U.S. Property Owners

    Coral reefs provide many services to coastal communities, including critical protection from flood damage. A new study reveals how valuable coral reefs are in protecting people, structures, and economic activity in the United States from coastal flooding during storms.

  • Experts Evaluate Planetary Defense Methods

    Scientists are working to develop methods to prevent asteroids from wreaking havoc on Earth. “We know that currently, the U.S. has many knowledge and capability gaps for planetary defense readiness,” says one expert.. “The work we are doing today, and the opportunity to discuss that work with the broader international community at venues like the IAA Planetary Defense Conference (PDC), is helping to close these gaps.”

  • How Can Scientists Predict a COVID-19 Outbreak? There Is an App for That

    A mobile app that uses crowd-sourced data on COVID-19 symptoms can accurately identify where local coronavirus outbreaks will appear, according to scientists who developed the app. “COVID Control” using self-reported virus symptom information could predict next outbreak.