• Rural areas more vulnerable to sea-level rise

    Type “sea-level rise” in an internet search engine and almost all the resulting images will show flooded cities. But there is a growing recognition that sea-level rise will mostly impact rural land–much of it privately owned—where existing knowledge is insufficient o best inform private and public decisions on how to cope with the threat.

  • Scent-based strategy blocks mosquito transmission of disease

    Could it be that your scent is just a bit too attractive? It is known that mosquitoes are drawn to certain human chemical odors that lead the insects to sources of food. New technology would temporarily modify skin microbiome to reduce attraction of disease-causing mosquitos by altering human scents.

  • Can we prepare for climate impacts without creating financial chaos?

    Likely sooner than we think, the destruction that warmer global temperatures are inflicting — through record floods, wildfires, droughts, and hurricanes — could physically overwhelm our ability to maintain many communities in their existing form. Communities face a tricky dilemma as climate changes: How to prepare for impacts without scaring away homeowners and investors and setting off a damaging economic spiral.

  • Small device alerts responders to changes to thermal conditions

    When firefighters rush into burning buildings, they know the thermal environment may change in a matter of seconds, exposing them to potentially lethal temperatures. Burn Saver is a body-worn technology that continuously monitors thermal conditions and warns firefighters when those conditions become threatening.

  • DARPA tests advanced chemical sensors

    DARPA’s SIGMA program, which began in 2014, has demonstrated a city-scale capability for detecting radiological and nuclear threats that is now being operationally deployed. DARPA is building off this work with the SIGMA+ initiative that is focused on providing city- to region-scale detection capabilities across the full chemical, biological, radiological, nuclear, and explosive threat space.

  • China raises threat of rare-Earths cutoff to U.S.

    With a simple visit to an obscure factory on Monday, Chinese President Xi Jinping has raised the specter that China could potentially cut off supplies of critical materials needed by huge swaths of the U.S. economy, underscoring growing concerns that large-scale economic integration is boomeranging and becoming a geopolitical weapon. Keith Johnson and  Elias Groll write in Foreign Policy that Beijing could slam every corner of the American economy, from oil refineries to wind turbines to jet engines, by banning exports of crucial minerals.

  • The forensic unknowns of 3D-printed guns

    Proponents of the printed guns – 3D-printed with polymers from digital files – maintain that sharing blueprints and printing the guns are protected activities under the First and Second Amendments. Opponents argue the guns are concerning because they are undetectable and also untraceable since they have no serial numbers.

  • Profitable climate change solution

    A seemingly counterintuitive approach – converting one greenhouse gas into another – holds promise for returning the atmosphere to pre-industrial concentrations of methane, a powerful driver of global warming.

  • Be afraid of the world, be very afraid

    Who’s right: Cassandra or Dr. Pangloss? Are we on the brink of serious trouble, as Cassandra of Greek myth prophesied, or is all for the best “in this best of all possible worlds,” as the fictional Pangloss insisted in Voltaire’s Candide? “I’m generally a fairly upbeat guy, despite my realist proclivities and my recurring frustrations at the embarrassing state of U.S. foreign policy,” Stephen M. Walt writes in Foreign Policy. “But today I’m going to indulge my inner Cassandra and describe the five bad things that worry me today. I hope I’m wrong.”

  • Cities can save lives, resources by using a vulnerability reduction scorecard

    A new planning tool enables communities to effectively reduce their vulnerabilities to hazards across their network of plans – including transportation, parks, economic development, hazard mitigation, emergency management and comprehensive land use.

  • The costs of extreme weather

    An expert tells lawmakers that there is one “underappreciated” fact in discussions about the costs of climate change: “small shifts in long-term average conditions — what we call climate — can have a large effect on the frequency of extreme weather events.” Examples: “In 2017, Hurricane Harvey caused an estimated $125 billion in losses, with an estimated 200,000 homes experiencing damage. Ongoing flooding in the upper Midwest is sure to produce agricultural losses alone in the billions of dollars, and extreme drought across much of the U.S. in 2012 caused $33 billion in losses.”

  • Dutch aquifers bank rainwater to help farmers keep the water running

    Climate change is increasing the risk of water shortages across Europe, but researchers in the Netherlands are hoping to ease pressure by generating a steady supply of clean water and heat from deep underground reservoirs known as aquifers.

  • Wandering Earth: rocket scientist explains how we could move our planet

    In the Chinese science fiction film “The Wandering Earth,” recently released on Netflix, humanity attempts to change the Earth’s orbit using enormous thrusters in order to escape the expanding sun – and prevent a collision with Jupiter. The scenario may one day come true. How could we go about it and what are the engineering challenges?

  • Will the next cyberattack be in the hospital?

    You may not think of hackers targeting hospitals, but this is where our wired world may be most vulnerable, and the results could be deadly. Israeli startup Cynerio aims to stop hackers from targeting medical devices, a potent new danger in our connected world.

  • Locating a shooter from the first shot using cellphone

    In the past several decades, militaries have worked hard to develop technologies that simultaneously protect infantry soldiers’ hearing and aid in battlefield communication. Now a French researcher has developed a proof of concept that uses the microphones in a TCAPS system to capture a shooter’s acoustic information and transmit this to a soldier’s smartphone to display shooter location in real time.