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Geoengineering versus a Volcano
Major volcanic eruptions spew ash particles into the atmosphere, which reflect some of the Sun’s radiation back into space and cool the planet. But could this effect be intentionally recreated to fight climate change? Solar geoengineering is a theoretical approach to curbing the effects of climate change by seeding the atmosphere with a regularly replenished layer of intentionally released aerosol particles. Proponents sometimes describe it as being like a “human-made” volcano.
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Smart Faucets Could Aid in Water Conservation
An experiment with a water-saving “smart” faucet shows potential for reducing water use. The catch? Unbeknownst to study participants, the faucet’s smarts came from its human controller. “We looked at the faucet because that’s where a lot of water usage in the home occurs, but when you compare your sink to other products in the house – a thermostat or refrigerator – you see that there haven’t been updates to how the sink works in a very long time,” says one researcher.
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Soils Could Be Affected by Climate Change, Impacting Water and Food
Coasts, oceans, ecosystems, weather and human health all face impacts from climate change, and now valuable soils may also be affected. Climate change may reduce the ability of soils to absorb water in many parts of the world, according to a Rutgers-led study. And that could have serious implications for groundwater supplies, food production and security, stormwater runoff, biodiversity and ecosystems.
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Climate Change Influences Magnitude of River Floods
Overflowing rivers can cause enormous damage: Worldwide, the annual damage caused by river floods is estimated at over 100 billion dollars - and it continues to rise. So far it has not been clear how climate change influences the magnitude of river floods. Until now: an large international study involving a total of 35 research groups provides clear evidence that changes in the magnitude of flood events observed in recent decades can be attributed to climate change.
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These Dams Needed Replacing 15 Years Ago. Now Texas Will Drain Four Lakes Instead — Causing Other Problems.
Texas officials will start draining four lakes next week in Guadalupe County in Central Texas without a plan in place for when the lakes, and the 90-year-old dams that support them, will be rebuilt. Area homeowners, who got barely a month’s notice, said they felt blindsided by the plan, and they say it will slash their property values, kill their beloved century-old cypress trees and render the lakes — which have hosted water skiing tournaments for decades — unusable.
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Microplastics Harming Our Drinking Water
Plastics in our waste streams are breaking down into tiny particles, causing potentially catastrophic consequences for human health and our aquatic systems. Approximately 300 million tons of plastic are produced globally each year and up to 13 million tons of that is released into rivers and oceans, contributing to approximately 250 million tons of plastic by 2025. Since plastic materials are not generally degradable through weathering or ageing, this accumulation of plastic pollution in the aquatic environment creates a major health concern.
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Leak Suggests UN Agency Self-Censors on Climate Crisis after U.S. Pressure
Leaked communications suggest that the UN’s migration agency is censoring itself on the climate crisis and the global compact on migration, following pressure from the U.S. government. an email sent by a U.S.-based official of the International Organization for Migration (IOM) on 28 August to colleagues around the world relayed that the U.S. state department’s Bureau of Population, Refugees and Migration (PRM) told the agency documents related to program activities it funds “must not be in conflict with current [U.S. government] political sensitivities.” These sensitivities include mentioning climate change and the UN sustainable development goals.
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9/11 Mystery Solved: World Trade Center Building Didn't Collapse Due to Fire – Study Finds
Foreign interference and hostile state espionage are a bigger threat to Australia’s security than terrorism, one of the country’s top spy chiefs has warned. Duncan Lewis, the outgoing head of Australian Security Intelligence Organisation (ASIO), identified three challenges security confronting Australians: terrorism, cyber warfare; and foreign interference and espionage. But the latter was on a “growth trajectory” and is a greater threat than terrorism, he told a Lowy Institute forum in Sydney.
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Bill Gates Is Funding a Chemical Cloud That Could Put an End to Global Warming
Whether you agree or not, global warming is happening. As reported by the minds at NASA, human activity continues to exacerbate the problem. Currently, there is more carbon dioxide in our atmosphere than in all of human history. Two-thirds of extreme weather events from the past 20 years can be tied back to human activity, while both our summers and winters are getting much warmer. Bill Gates is currently backing a potential solution to global warming that centers around the technology of solar geoengineering.
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Even for Non-Believers, These Are the Next Steps on Climate Change
Research indicates that we need to go beyond observing the wreckage of major storms and pondering trillion-dollar plans to attempt to mitigate carbon. Businesses, homeowners, and local governments must focus on what can be done today to address these direct threats to people and property. There are three major tools in the “what to do next” approach: probability, selection, and migration.
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Damage Estimates for Hurricanes Like Dorian Don’t Capture the Full Cost of Climate Change-Fueled Disasters
Scientists say climate change is causing powerful hurricanes like Dorian to increasingly stall over coastal areas, which leads to heavy flooding. The U.S. government’s Fourth National Climate Assessment offered a range of climate change-induced losses of U.S. GDP which range from as low as 6 percent to as high as 14 percent by 2090. Aa more meaningful assessment of the costs of climate change – using basic economic principles I teach to undergrads – is a hell of a lot scarier.
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Faster, Smarter Security Screening Systems
By now, attendees to sporting events, visitors to office buildings, and especially frequent fliers are all quite familiar with the technologies used at security checkpoints. You arrive at the security checkpoint, check your bags, show your ID and maybe your ticket or boarding pass, throw away the coffee or water you’ve been chugging, and then wait in a long line until it is your turn to be screened. The security lines can be inconvenient. S&T and partners are working to help security screening systems, whether at airports, government facilities, border checkpoints, or public spaces like arenas, to work faster and smarter.
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DOD Recognizes Virginia Tech’s Contribution to Counterintelligence
DOD’s Defense Counterintelligence and Security Agency last month awarded Virginia Tech the 2018 Award for Excellence in Counterintelligence to the university. The award, given annually since 2010, recognizes up to four companies or institutions, out of about 10,000, which exhibit the best counterintelligence results and cooperation to support the U.S. government’s efforts to detect and stop foreign entities from stealing national security information.
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Designed Super Shrimp Could Increase Yield, Help Prevent Disease
Single-sex prawns could help alleviate poverty, reduce disease and protect the environment, according to researchers at Ben-Gurion University of the Negev (BGU) who have developed a monosex prawn that may make this winning trifecta possible.
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“100-year” Floods Will Happen Every 1 to 30 Years: Study
A 100-year flood is supposed to be just that: a flood that occurs once every 100 years, or a flood that has a one-percent chance of happening every year. But researchers have developed new maps that predict coastal flooding for every county on the Eastern and Gulf Coasts and find 100-year floods could become annual occurrences in New England; and happen every one to 30 years along the southeast Atlantic and Gulf of Mexico shorelines.
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More headlines
The long view
Encryption Breakthrough Lays Groundwork for Privacy-Preserving AI Models
In an era where data privacy concerns loom large, a new approach in artificial intelligence (AI) could reshape how sensitive information is processed. New AI framework enables secure neural network computation without sacrificing accuracy.
AI-Controlled Fighter Jets May Be Closer Than We Think — and Would Change the Face of Warfare
Could we be on the verge of an era where fighter jets take flight without pilots – and are controlled by artificial intelligence (AI)? US R Adm Michael Donnelly recently said that an upcoming combat jet could be the navy’s last one with a pilot in the cockpit.
The Potential Impact of Seabed Mining on Critical Mineral Supply Chains and Global Geopolitics
The potential emergence of a seabed mining industry has important ramifications for the diversification of critical mineral supply chains, revenues for developing nations with substantial terrestrial mining sectors, and global geopolitics.
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.