• First to Respond, Come What May

    Of the emerging threats the U.S. is facing, climate change is particularly prominent. But climate change is just one factor currently impacting the evolving response environment. Human behavior, technology advancement, infrastructure, COVID-19, and protests/civil unrest are all making responders’ jobs more challenging as well.

  • U.S. Should Begin Laying the Foundation for New and Advanced Nuclear Reactors: Report

    New and advanced types of nuclear reactors could play an important role in helping the U.S. meet its long-term climate goals, but a range of technical, regulatory, economic, and societal challenges must first be overcome.

  • Geothermal Energy: Limitless, Renewable, and Nonpolluting

    Geothermal resources offer a tantalizing opportunity to provide affordable, carbon-neutral electricity. It is virtually limitless, “always on,” and widely available across all fifty states.

  • Are We Asking Too Much of Cyber?

    Both cyber enthusiasts and skeptics may be asking too much of cyber. “U.S. cyber strategies should be more explicit about articulating not only the strategic benefits cyberspace offers but also its limitations,” Erica Lonegran and Michael Poznansky write. “More realism about cyberspace may help leaders truly integrate cyber capabilities.”

  • The Critical Minerals End-Game?

    To reduce greenhouse gas emissions, there’s been a dramatic uptake of renewable energy, primarily solar and wind, with a transition to lithium-ion batteries for electric vehicles and energy storage. The transition relies on increasing the extraction of critical minerals for their production.

  • From Fiction to Reality: Could Airships Be the Key to Greener Travel?

    Airships have captured science-fiction writers’ imaginations — including Kim Stanley Robinson in Ministry for the Future. We examine the tech’s utility in the real world.

  • Enhancing Advanced Nuclear Reactor Analysis

    Nuclear power is a significant source of steady carbon-neutral electricity, and advanced reactors can add more of it to the U.S. grid, which is vital for the environment and economy. Sandia Lab researchers have developed a standardized screening method to determine the most important radioactive isotopes that could leave an advanced reactor site in the unlikely event of an accident.

  • Shutting Down Nuclear Power Could Increase Air Pollution

    Nearly 20 percent of today’s electricity in the United States comes from nuclear power. The U.S. has the largest nuclear fleet in the world, with 92 reactors scattered around the country. Many of these power plants have run for more than half a century and are approaching the end of their expected lifetimes. If reactors are retired, polluting energy sources that fill the gap could cause more than 5,000 premature deaths, researchers estimate.

  • “Statistically Impossible” Heat Extremes Are Here: Study Identifies the Regions Mmost at Risk

    In the summer of 2021, Canada’s all-time temperature record was smashed by almost 5℃. Its new record of 49.6℃ is hotter than anything ever recorded in Spain, Turkey or indeed anywhere in Europe. One of the most important questions when studying these extreme heatwaves is “how long do we have to wait until we experience another similarly intense event?”. This is a challenging question but, fortunately, there is a branch of statistics, called extreme value theory, that provides ways in which we can answer that exact question using past events.

  • Intelligence Agencies Have Used AI Since the Cold War – but Now Face New Security Challenges

    Intelligence agencies, including the CIA and the NSA, have been using earlier forms of AI since the start of the cold war. Today, budgetary constraints, human limitations and increasing levels of information were making it impossible for intelligence agencies to produce analysis fast enough for policy makers. The increasing use of AI aims to help intelligence agencies cope with such challenges, but AI creates both opportunities and challenges for these agencies.

  • Using Quantum Physics to Secure Wireless Devices

    From access cards and key fobs to Bluetooth speakers, the security of communication between wireless devices is critical to maintaining privacy and preventing theft. Unfortunately, these tools are not foolproof and information on how to hack, clone and bypass these systems is becoming easier to find.

  • Outsmarting Superbugs, One Germ at a Time

    It’s an old story: Pathogen sickens humans. Humans create medicine. Pathogen evolves a way around the medicine. Humans are back to square one.

  • To Restrict, or Not to Restrict, That Is the Quantum Question

    Innovation power—the ability to invent, scale, and adapt emerging technologies—will determine which country prevails in the great power competition of the 21st century. Export controls thus assume a central position in the U.S. foreign policy toolkit, carrying the ability to significantly impact an adversary’s innovation potential. “U.S. policymakers are right to identify quantum information science as a critical technology area ripe for restriction, but introducing export controls now is likely to cause more harm than good.,” Sam Howell writes.

  • Enhanced Community Safety by Reimagining Gunshot Detection

    A new gunshot detection system delivers new capabilities that significantly improve the response and management of outdoor shootings. The portable system employs two methods of detection for increased accuracy and reduced false positives.

  • The Key to Securing Legacy Computing Systems

    For a cyber-attack to be successful, one must conduct a sequence of exploits to move from the initial system access, through privilege escalation and lateral motion steps, until reaching the ultimate target. DARPA is pursuing an approach to cyber resilience that would subdivide software systems into smaller, secure compartments that prevent an initial attempt at penetration from becoming a successful attack.