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Groundwater resources around the world could be depleted by 2050s
Human consumption could deplete groundwater in parts of India, southern Europe, and the United States in the coming decades, according to new research presented at the 2016 American Geophysical Union Fall Meeting. New modeling of the world’s groundwater levels finds aquifers — the soil or porous rocks that hold groundwater — in the Upper Ganges Basin area of India, southern Spain, and Italy could be depleted between 2040 and 2060.
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Chemistry research breakthrough could improve nuclear waste recycling technologies
Researchers have taken a major step forward by describing the quantitative modelling of the electronic structure of a family of uranium nitride compounds – a process that could in the future help with nuclear waste recycling technologies. “In this nuclear age, there is a pressing need for improved extraction agents for nuclear waste separations and recycling technologies,” explained one of the researchers.
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New approach calculates benefits of building hazard-resistant structures
The southeastern United States was hit hard by weather patterns resulting from Hurricane Matthew in October. Georgia has sustained some $90 million in insured losses to date, and total claims are expected to rise. Florida was spared Matthew’s worst effects, but the state is regularly witness to the destructive power of such storms and there’s a lot at stake: The insured value of residential and commercial properties in Florida’s coastal counties now exceeds $13 trillion. Calculation developed by MIT Concrete Sustainability Hub shows that when building in areas prone to natural disasters, it pays to make informed decisions.
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Improving methods to assess earthquake-caused soil liquefaction
Several strong earthquakes around the world have resulted in a phenomenon called soil liquefaction, the seismic generation of excess porewater pressures and softening of granular soils, often to the point that they may not be able to support the foundations of buildings and other infrastructure. Effectively engineering infrastructure to protect life and to mitigate the economic, environmental, and social impacts of liquefaction requires the ability to accurately assess the likelihood of liquefaction and its consequences.
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Accelerating sea level rise requires collaborative response: Experts
Recent estimates suggest that global mean sea level rise could exceed two meters by 2100. The projections pose a challenge for scientists and policymakers alike, requiring far-reaching decisions about coastal policies to be made based on rapidly evolving projections with large, persistent uncertainties. Policymakers and scientists must thus act quickly and collaboratively to help coastal areas better prepare for rising sea levels globally, say climate change experts.
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“Nightmare scenario”: Nuclear power plants vulnerable to hacking by terrorists
Security experts fear Fukushima-like disaster as terrorists use new technology to attempt attacks. The frequency and scope of cyberattacks on nuclear plants have increased dramatically, and experts say that a successful hack is now all but inevitable. They say that nuclear plant operators should focus more on preparing to contain and limit the damage when it does occur.
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Safer, long-life nuclear reactors: Metal design may raise radiation resistance by 100 times
The big problem faced by metals bombarded with radiation at high temperatures—such as the metals that make up nuclear fuel cladding—is that they have a tendency to swell up significantly. They can even double in size. In findings that could change the way industries like nuclear energy and aerospace look for materials that can stand up to radiation exposure, researchers have discovered that metal alloys with three or more elements in equal concentrations can be remarkably resistant to radiation-induced swelling.
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How much water do we use? New interactive maps tells us
Wash. Rinse. Repeat. With every shampoo or load of laundry you may wonder, how much water did I just use? Now multiply that thought across the nation and add other types of ways to use water, from irrigating crops to sustaining thermoelectric power generation. The USGS National Water-Use Science project has documented sixty years of water-use from 1950 to 2010 in an interactive map. You may choose a year and pick a category to see how much water your state uses.
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Helping shape safer coastal communities
Higher dunes can help protect communities from damaging waves and surge; they can also impede natural coastal processes. Scientists need better to understand how dunes’ effectiveness in protecting developed areas will be affected by long-term coastal change, or by extreme events such as hurricanes. Coastal zone research projects will fill in some of those knowledge gaps, heling managers protect developed areas’ beach dunes, which are vital to resilient communities, ecosystems, and economies.
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Accelerating sea level rise threatens communities, infrastructure in NY, NJ, Conn.
Parts of the New York, New Jersey, and Connecticut metropolitan area are at risk of being permanently flooded by sea level rise. A new study details the severe threats posed to the region’s bay areas, coastal urban centers, beach communities, and airports and seaports by as little as one foot of sea level rise, a possibility as soon as the 2030s. Sea level rise already has begun to affect communities and critical infrastructure in the region, and presents tough decisions for vulnerable areas.
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Future of nuclear energy unclear
Despite a turbulent history, the allure of nuclear energy — electricity production on a massive scale with minimal emissions — remains attractive. Its low emission rate is why the United Nations International Panel on Climate Change recommends doubling the world’s nuclear capacity by 2050. Yet the bulk of the 100 nuclear reactors currently operating in the U.S., which continue to produce about 20 percent of the nation’s energy, are reaching retirement age, and energy market forces don’t always favor nuclear.
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Syrian crisis altered region’s land and water resources
The Syrian civil war and subsequent refugee migration caused sudden changes in the area’s land use and freshwater resources. Using satellite imagery processed in Google Earth Engine, researchers determined the conflict in Syria caused agricultural irrigation and reservoir storage to decrease by nearly 50 percent compared to prewar conditions.
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Advancing the science of cybersecurity
Cyberattacks on corporations, agencies, national infrastructure and individuals have exposed the fragility and vulnerability of the internet and networked systems. Achieving truly secure cyberspace requires addressing both the technical vulnerabilities in systems, as well as those that arise from human behaviors and choices. NSF awards $70 million to support interdisciplinary cybersecurity research.
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New wastewater system design guidelines help protect aquatic life
New wastewater system design guidelines can help municipal governments better protect aquatic life and save millions of dollars a year. Engineers developed guidelines that can tailor the design of specialized filters, called fluidized bed reactors, to local conditions and help prevent phosphorous deposits from forming in wastewater systems.
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Better way for coastal communities to prepare for devastating storms
As of 2010, approximately 52 percent of the United States’ population lived in vulnerable coastal watershed counties, and that number is expected to grow. Globally, almost half of the world’s population lives along or near coastal areas. Coastal communities’ ability to plan for, absorb, recover, and adapt from destructive hurricanes is becoming more urgent.
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More headlines
The long view
Helping Strengthen America’s Critical Infrastructure
Everyday life depends on a robust infrastructure network that provides access to running water, communications technology and electricity, among other basic necessities. The experts who keep our national infrastructure secure and resilient also need a strong network to share their knowledge and train the next generation of professionals capable of solving complex infrastructure challenges.
AI and the Future of the U.S. Electric Grid
Despite its age, the U.S. electric grid remains one of the great workhorses of modern life. Whether it can maintain that performance over the next few years may determine how well the U.S. competes in an AI-driven world.
Using Liquid Air for Grid-Scale Energy Storage
New research finds liquid air energy storage could be the lowest-cost option for ensuring a continuous power supply on a future grid dominated by carbon-free but intermittent sources of electricity.
Enhanced Geothermal Systems: A Promising Source of Round-the-Clock Energy
With its capacity to provide 24/7 power, many are warming up to the prospect of geothermal energy. Scientists are currently working to advance human-made reservoirs in Earth’s deep subsurface to stimulate the activity that exists within natural geothermal systems.
Experts Discuss Geothermal Potential
Geothermal energy harnesses the heat from within Earth—the term comes from the Greek words geo (earth) and therme (heat). It is an energy source that has the potential to power all our energy needs for billions of years.