• Supply Chains Have a Cyber Problem

    If it wasn’t clear before the cyberattacks on, JBS S.A. and Colonial Pipeline, it’s now painfully clear that the intersection of cyberattacks and supply chains creates a wicked new form of risk—and the stakes are as much about national security as they are economics.

  • Colorado River’s Low-Flow Sheds Light on Eventual New Normal for Grand Canyon

    The Colorado River follows a 1,450-mile route generally southwest from north central Colorado to just east of Las Vegas. From there it turns south to form Arizona’s western border with Nevada and California, and then the border between Mexican states Sonora and Baja California before emptying into the Gulf of California. Between the U.S. and Mexico, 40 million people depend on water from the Colorado.As the climate continues to warm and the amount of water available for humans continues to drop, low flows may become the new normal, he added.

  • For Flood-Prone Cities, Seawalls Raise as Many Questions as They Answer

    The U.S. Army Corps of Engineers, whose mission includes maintaining waterways and reducing disaster risks, has recently proposed building large and expensive seawalls to protect a number of U.S. cities, neighborhoods and shorelines from coastal storms and rising seas. As a scientist who studies the evolution and development of coastlines and the impacts of sea level rise, I believe that large-scale seawalls, which cost billions of dollars to build, are almost certainly a short-term strategy that will protect only a few cities, and will protect only selected portions of those cities effectively.

  • Harvesting Fresh Water from Humidity around the Clock

    Fresh water is scarce in many parts of the world and must be obtained at great expense. Communities near the ocean can desalinate sea water for this purpose, but doing so requires a large amount of energy. Further away from the coast, practically often the only remaining option is to condense atmospheric humidity through cooling. Current technologies allow water harvesting only at night, but a new technology, for the first time, allows water harvesting 24 hours around the clock, even under the blazing sun.

  • Why Did the Miami Apartment Building Collapse? And Are Others in Danger?

    It is too early to tell what caused the collapse of the Champlain Towers South Tower, but the following causes are now being examined: a progressive collapse as a result of a failure of a primary structural element, which then causes failure of adjoining members; the building was constructed on reclaimed wetlands, which may have been sinking; there was also construction work ongoing nearby, which could have disturbed the foundations; if there was a reduction in the capacity of the soil to support these loads, such as in the event of a sinkhole, there would be nothing underpinning the building.

  • Military and Defense-Related Supply Chains

    The military services, geographic combatant commanders, the Defense Logistics Agency (DLA), and other combat support agencies have different responsibilities and incentives, and their management of their supply chains reflect these differences. These incentives drive behavior that makes individual sense for the organizations, but might not result in overall effectiveness in supporting the needs of operating forces.

  • New Irrigation Tool Promotes Efficient Water Use and Environmental Stewardship

    Irrigation technology has developed to the point where pressurized pipes can deliver water for irrigation while generating in-conduit hydropower that can be used to power electric pumps that currently rely on diesel, and in the future, also power electric tractors and combines.

  • A Simple Simulation Helps Coastal Towns Plan for Rising Sea Levels

    Climate change causes sea level rise and increasingly strong coastal storms. Knowing how water moves through coastal structures can yield important insights for residents and planners.

  • Making Our Computers More Secure

    Corporations and governments rely on computers and the internet to run everything, but security hacks just this past month —  including the Colonial Pipeline security breach and the JBS Foods ransomware attacks  — demonstrated, yet again, how vulnerable these systems are. Researchers presented new systems to make computers safer.

  • Natural Hazards Threaten 57% of U.S. Structures

    As a result of increasing temperatures and environmental changes, more than half of the structures in the contiguous United States are exposed to potentially devastating natural hazards—such as floods, tornadoes, hurricanes, and wildfires.

  • Role of Managed Retreat as a Climate Change Response

    Managed retreat—the climate adaptation response of moving people and property out of harm’s way— is becomig more appealing as one of several responses to sea-level rise. Researchers explore what it would take for managed retreat to be supportive of people and their priorities. The key is to consider retreat alongside other responses like coastal defenses, and not just as an option of last resort.

  • “Managed Retreat” Can Reinvent Cities While Protecting Lives When Climate Change Floods, Burns or Bakes the Land

    Record-breaking heat waves; megadroughts, drying fresh-water sources; hotter and more frequent wildfires; intensifying hurricanes — this is what climate change looks like, and communities need to be prepared. Sometimes small adaptations can help reduce the heat or minimize the damage. But when the risks get too high, one strategy that has to be considered is managed retreat – the purposeful movement of people, buildings and other infrastructure away from highly hazardous places.

  • How Will We Protect American Infrastructure from Cyberattacks

    As the Colonial Pipeline hack and subsequent shutdown reminded us so recently, our infrastructure’s digital connectedness — while bringing benefits like convenience, better monitoring and remote problem-solving — leaves it vulnerable to cyberattacks.

  • How America Turned the Tables on Huawei

    The United States started warning allies and partners in 2019 that having the Chinese telecom firm Huawei build their 5G telecom infrastructure risked exposing their citizens’ and their official data to Chinese state surveillance. The Trump administration argued that countries should keep Huawei out, both for their own sake and for the sake of collective security among democratic allies.

  • Texas Must Address Groundwater Future: Study

    Long-term water security is essential for the future of Texas, and the state acutely needs a common law system that can balance world-scale agricultural activity, industrial development and urban growth while also protecting private property rights, according to new research.