• Water storage strategies in Sub-Sahara Africa

    Direct abstraction of water from rivers through ponds and pumping devices seems the most attractive water storage option in Ethiopia. However, the funding agencies that may be interested in investing in such a storage system have to consider that better access to credit, and clear abstraction policies should be ensured.

  • In emergencies, don’t trust a robot too much

    In emergencies, people may trust robots too much for their own safety, a new study suggests. In a mock building fire, test subjects followed instructions from an “Emergency Guide Robot” even after the machine had proven itself unreliable — and after some participants were told that robot had broken down.

  • Calculating monetary losses from floods caused by sea level rise

    Damages from extreme events like floods are even more relevant than the mean sea level itself when it comes to the costs of climate impacts for coastal regions. However, while it is now rather well understood how sea-levels will rise in the future, only small progress has been made estimating how the implied damage for cities at the coasts will increase during the next decades. Scientists now provide a method to quantify monetary losses from coastal floods under sea-level rise. For the first time, the scientists show that the damage costs consistently increase at a higher rate than the sea-level rise itself.

  • Suicide bomb detector moves close to commercialization with Sandia engineer’s help

    On the chilling list of terrorist tactics, suicide bombing is at the top. Between 1981 and 2015, an estimated 5,000 such attacks occurred in more than 40 countries, killing about 50,000 people. The global rate grew from three a year in the 1980s to one a month in the 1990s to one a week from 2001 to 2003 to one a day from 2003 to 2015. R3 Technologies and a group of other small businesses are developing a way to prevent suicide attacks by detecting concealed bombs before they go off. R3 found a partner in Sandia sensor expert JR Russell who has helped bring the company’s Concealed Bomb Detector, or CBD-1000, close to commercialization over the past two years.

  • Studying collaboration between research, intelligence communities

    In 2013, NC State University and the National Security Agency (NSA) created the Laboratory for Analytic Sciences (LAS) — a collaborative partnership focused on addressing the research challenges associated with “big data.” They soon discovered that a funny thing happens when academic researchers collaborate with the intelligence community: they feel like they are being spied on.

  • Fast, lightweight autonomous air vehicle completes first flight data tests

    DARPA’s Fast Lightweight Autonomy (FLA) technologies could be useful in addressing a pressing surveillance shortfall. Military teams patrolling dangerous overseas urban environments, and rescue teams responding to disasters such as earthquakes or floods, currently can use remotely piloted unmanned aerial vehicles (UAVs) to provide a bird’s-eye view of the situation, but to know what is going on inside an unstable building or a threatening indoor space often requires physical entry, which can put troops or civilian response teams in danger.

  • Autonomous underwater vehicles pre-programmed to make independent decisions

    More than 70 percent of the Earth’s surface is covered by water, yet scientists know more about space than about what happens in the ocean. One way scientists are trying to improve their understanding of the marine environment is through the use of autonomous underwater vehicles (AUVs), programmable robotic vehicles that can independently study the ocean and its inhabitants.

  • Sea-level rise in twentieth century faster than in any previous century

    Global sea level rose faster in the twentieth century than in any of the twenty-seven previous centuries, according to a new study. Moreover, without global warming, global sea level would have risen by less than half the observed twentieth century increase and might even have fallen. Instead, global sea level rose by about 14 centimeters, or 5.5 inches, from 1900 to 2000. This is a substantial increase, especially for vulnerable, low-lying coastal areas.

  • New tool for coastal planners preparing for sea level rise

    Scientists have developed a new model to help coastal planners assess the risks of sea level rise. Put to use on a global scale, it estimates that the oceans will rise at least twenty-eight centimeters on average by the end of this century — and as much as 131 cm if greenhouse gas emissions continue to grow unchecked.

  • New sensor rivals dogs in detecting explosives

    Dogs have been used for decades to sniff out explosives, but now a University of Rhode Island scientist and his team have come up with another way to detect bombs: sensors. The scientist has developed a sensor that can detect explosives commonly used by terrorists. One of these explosives is triacetone triperoxide, or TATP. Triacetone triperoxide has been used by terrorists worldwide, from the 2001 “shoe bomber” Richard Reid to the suicide bombers who attacked residents of Paris in November. The explosive is relatively easy to make with chemicals that can be bought at pharmacies and hardware stores, attracting little attention from authorities.

  • Experts tackle U.K. flood risk

    The U.K. Blue-Green Cities Research Project combines the expertise of academics from nine U.K. universities plus partners in the United States and China specializing in flood inundation modelling, computation fluid dynamics, sediment debris processes, river restoration and habitats, urban drainage infrastructure, environmental economics, uncertainty, flood risk management, and stakeholder engagement. The project’s goal is to make U.K. cities more resilient to flooding.

  • Integrating markets to offset climate-related food insecurity

    Global market integration is key to buffering future commodity prices and food security from the negative effects of climate change on agriculture. Rising temperatures and an increase in extreme weather events will likely have adverse impacts on global crop production, leading to higher food prices and food scarcity. But global markets that have the ability to deliver food where it is needed most could help offset these consequences.

  • Extreme weather likely to result in “food shocks”

    A panel of British and American researchers, speaking at the annual meeting of the American Association for the Advancement of Science (AAAS) in Washington, D.C., presented updated research revealing how extreme events which affect the food system are increasingly likely to occur, resulting in “food shocks.”

  • Students to learn coding - rather than a foreign language

    Florida lawmakers are about the authorize a measure which would allow students to study computer coding instead of a foreign language. Florida is not the only state considering such a measure, as support for similar changes is growing across the United States. officials in Kentucky, Georgia, New Mexico, Oregon, and Washington have also considered substituting foreign language studies with computer coding credits.

  • Better Greenland, Antarctica sheet modeling helps predict sea-level rise

    The Greenland and Antarctic ice sheets will make a dominant contribution to twenty-first century sea-level rise if current climate trends continue. However, predicting the expected loss of ice sheet mass is difficult due to the complexity of modeling ice sheet behavior. Better to understand this loss, a team of Sandia National Laboratories researchers has been improving the reliability and efficiency of computational models that describe ice sheet behavior and dynamics.