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Adding Hard-to-Reach Water to the Water Supply
More than 20 percent of the world’s population are dependent on karst groundwater. In these regions, large amounts of water seep into the porous rock and are available at great depths only. Moreover, karst water is susceptible to pollution. Use for sustainable water supply is a challenge in threshold and developing countries.
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Policy Decisions' Effect on Migration from Sea Level Rise
A new modeling approach can help researchers, policymakers and the public better understand how policy decisions will influence human migration as sea levels rise around the globe. “Sea level rise is going to reorganize the human population around the globe,” says one researcher.
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Using Hemp to Repair Deteriorating Kentucky Bridges
Bridges are a crucial component of Kentucky’s infrastructure — providing access between regions and cities and linking workers to jobs. But as traffic continues to increase, bridges across the state are aging at an accelerated pace. Experts say that 7 percent of Kentucky’s bridges—or 1,100 bridges — are classified as “structurally deficient.” Researchers have developed innovative products — dubbed CatStrong — for restoring bridges.
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Lack of Preparation Hampers Protection against Bushfires
As Australia confronts devastating bushfire conditions, people across the nation are doing all they can to ensure the safety of their homes, property and loved ones. But while many individuals are responding well to bushfire risks, a lack of preparation on the community level could be hampering their efforts, according to a new research.
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FCC Bans Use of Federal Funds in Purchases of Chinese Telecom
The Federal Communications Commission (FCC) on 22 November blocked U.S. telecommunications providers from using an $8.5 billion subsidy fund – the FCC’s Universal Service Fund (USF) — to buy Chinese-made telecommunications gear deemed a national security threat to critical infrastructure. The U.S. said that given Huawei and ZTE’s close relationship and legal obligations to the Chinese government, their gear poses a threat to telecommunications critical infrastructure, as well as to national security.
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Studying Large Storm to Help Lessen Their Impact on Coasts
When cyclones or other massive oceanic storms make landfall, their giant waves batter coastlines and sometimes cause widespread damage. Researchers have analyzed months of data of large nearshore waves to provide new insights that could help improve the designs of a variety of coastal structures from seaports to seawalls to better withstand destructive waves.
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Beavers to help U.K. Flood Management
Having once been an important part of the ecosystem, beavers became extinct in the United Kingdom in the sixteenth century due to hunting for their fur, meat and scent glands. The U.K. National Trust has announced plans to release Eurasian beavers at two sites in the south of England next spring to help with flood management.
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Using the Internet of Things for Water Security
A cluster of internet-enabled devices, including a water-flow sensor, pH sensor, ultrasonic sensor, and “PIC” microcontroller, may be used together as a watchdog system for water quality.The simple and low-cost system being developed by the team of researchers in India makes water quality assessment and water security widely available without the need for sophisticated technical knowledge.
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Switching to Renewable Energy May Save Thousands of Lives in Africa
With economies and populations surging, an industrial revolution is inevitable on the African continent. The question is, what’s going to power it? With renewable energy cheaper and more efficient than ever, countries in Africa have the unique opportunity to harness abundant renewable sources like wind, solar and geothermal to leapfrog the dependence on fossil fuels that has poisoned the air and environment in Europe, the U.S., India and China. But will they?
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Lessons from the Cyberattack on India’s Largest Nuclear Power Plant
In early September, a cyberattack occurred at the Kudankulam nuclear power plant in India. The Indian nuclear monitoring agency finally admitted that the nuclear plant was hacked, and on 30 October Indian government officials acknowledged the intrusion. “As the digitalization of nuclear reactor instrumentation and control systems increases, so does the potential for malicious and accidental cyber incidents alike to cause harm,” Alexander Campbell and Vickram Singh write.
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Florida’s Building Code Doesn’t Take Sea Rise into Account. That Could Change This Year.
The last time the Florida building code changed, in 2016, it required any new construction along the coast to elevate buildings by one foot. Three years later, this does not look to be enough. Experts call for going up yet another foot. Alex Harris notes that elevating the base of homes is a clear sign that political debates over climate change notwithstanding, “the people who plan and build in coastal Florida consider the threat of sea rise very real.”
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Rising Seas Threaten Low-Lying Coastal Cities, 10 percent of World Population
A new report from the Coalition for Urban Transitions finds that, because sea level rise exacerbates flooding and storm surge, it is a critical threat to urban coastal areas. More than 10 percent of the world’s population now resides in urban centers or quasi-urban clusters situated at less than 10 meters above sea level.
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What Causes Steel Corrosion in Reinforced Concrete
Since the Egyptian pyramids and the Roman Coliseum were built, mankind has been searching for an affordable, versatile building material, that can be easily manufactured and transported, and, above all, which is durable. Concrete has all these characteristics, but there is a problem: the corrosion of steel bars that internally strengthen structures made of reinforced concrete. This situation causes rapid, internal deterioration of frames and may even lead to buildings collapsing.
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Operations in French Nuclear Power Plant Suspended after Monday Tremor
Following a strong earthquake Monday in the Drôme and Ardèche regions in south-east France, EDF (Électricité de France) has ordered the suspension of power production at the Cruas-Meysse power station. The magnitude 5.4 earthquake shook the area at 11:52 a.m. Monday. Of France’s nineteen active nuclear power plants, five plants are located in seismically active zones.
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New Reactor Designs Will Degrade Waste More Rapidly
Renewed interest in nuclear power as a viable option for generating electricity has been accompanied by steady progress in reactor design. Advanced reactors offer the promise of greater fuel efficiency and less radioactive waste generation compared with the water-cooled models that have dominated the nuclear power landscape for decades. Newer designs, however, will operate at higher temperatures and use highly corrosive coolants — like liquid metal, molten salt, or high-temperature gas — all of which would rapidly degrade many of the materials used in conventional nuclear reactors.
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More headlines
The long view
Water Wars: A Historic Agreement Between Mexico and US Is Ramping Up Border Tension
As climate change drives rising temperatures and changes in rainfall, Mexico and the US are in the middle of a conflict over water, putting an additional strain on their relationship. Partly due to constant droughts, Mexico has struggled to maintain its water deliveries for much of the last 25 years, deliveries to which it is obligated by a 1944 water-sharing agreement between the two countries.
Trump Is Fast-Tracking New Coal Mines — Even When They Don’t Make Economic Sense
In Appalachian Tennessee, mines shut down and couldn’t pay their debts. Now a new one is opening under the guise of an “energy emergency.”
Smaller Nuclear Reactors Spark Renewed Interest in a Once-Shunned Energy Source
In the past two years, half the states have taken action to promote nuclear power, from creating nuclear task forces to integrating nuclear into long-term energy plans.
Keeping the Lights on with Nuclear Waste: Radiochemistry Transforms Nuclear Waste into Strategic Materials
How UNLV radiochemistry is pioneering the future of energy in the Southwest by salvaging strategic materials from nuclear dumps –and making it safe.
Model Predicts Long-Term Effects of Nuclear Waste on Underground Disposal Systems
The simulations matched results from an underground lab experiment in Switzerland, suggesting modeling could be used to validate the safety of nuclear disposal sites.