Showing 20 articles starting at article 1021
< Previous 20 articles Next 20 articles >
Categories: Computer Science: Encryption, Geoscience: Environmental Issues
Published Researchers advocate for sustainable logging to safeguard against global flood risks
(via sciencedaily.com) Original source It's time to recognize the power of healthy forests in managing global growing flood risk, and to shift towards more sustainable forestry practices and policy.
Published A new design improves water decontamination via plasma jet
(via sciencedaily.com) Original source Two research groups design a plasma (an ionized gas) reactor maintained by microwaves that makes it possible to decontaminate waters with high concentrations of dye.
Published War in Ukraine severely limits ability to track Arctic climate change
(via sciencedaily.com) Original source Scientists no longer have direct access to data from Russian Arctic research stations. Without this data, our view of climate changes in the region is increasingly biased, new research shows.
Published Paper provides a clearer picture of severe hydro hazards
(via sciencedaily.com) Original source A new study now provides a global examination of drought-pluvial volatility -- or the tendency to shift from one weather extreme to another.
Published A large percentage of European plastic sent to Vietnam ends up in nature
(via sciencedaily.com) Original source Despite strict EU regulations on plastic recycling, there is little oversight on plastic waste shipped from the EU to Vietnam. A large percentage of the exported European plastic cannot be recycled and gets dumped in nature, according to recent research.
Published New tool predicts flood risk from hurricanes in a warming climate
(via sciencedaily.com) Original source A new method predicts how much flooding a coastal community is likely to experience as hurricanes evolve due to climate change. Using New York as a test case, the model predicts Hurricane Sandy-level flooding will occur roughly every 30 years by 2099.
Published Global groundwater depletion is accelerating, but is not inevitable
(via sciencedaily.com) Original source Groundwater is rapidly declining across the globe, often at accelerating rates. Researchers now present the largest assessment of groundwater levels around the world, spanning nearly 1,700 aquifers. In addition to raising the alarm over declining water resources, the work offers instructive examples of where things are going well, and how groundwater depletion can be solved. The study is a boon for scientists, policy makers and resource managers working to understand global groundwater dynamics.
Published New study unveils how plants control the production of reactive oxygen species
(via sciencedaily.com) Original source Reactive oxygen species (ROS), though generally regarded as toxic byproducts of biological processes, serve many important functions in plants. However, the precise mechanism that plants use to regulate the production of ROS remains elusive. In a recent study, researchers clarified how an important ROS-generating enzyme is activated, revealing mechanisms likely conserved across all land plants. Their findings could pave the way for breakthroughs in agricultural and environmental remediation tools.
Published Injectable water filtration system could improve access to clean drinking water around the world
(via sciencedaily.com) Original source A new portable filtration system collects dirty water with a syringe and injects it into a hydrogel filter that weeds out nearly all tiny particles.
Published As a carbon offset, cookstove emission credits are greatly overestimated
(via sciencedaily.com) Original source On the global carbon market, credits for distributing efficient cookstoves in countries that traditionally burn wood or kerosene are the fastest growing type of offset traded. A new study evaluates these credits against published data on cookstove efficiency and usage and concludes that cookstove offsets are 10 times overvalued. The group offers guidance for choosing carbon offsets from cookstoves projects that reduce greenhouse gas emissions and the impact on health, and for revising offset programs to avoid excess crediting.
Published Water, water everywhere and now we may have drops to drink
(via sciencedaily.com) Original source Researchers have achieved a major breakthrough in Redox Flow Desalination (RFD), an emerging electrochemical technique that can turn seawater into potable drinking water and also store affordable renewable energy.
Published Discovering the physics behind 300-year-old firefighting methods
(via sciencedaily.com) Original source Inspired by a 1725 fire engine that pumped water at larger distances and higher speeds than previously possible, authors analyzed the pressure chamber's Windkessel effect to capture the physics behind this widely used, enduring technology. They compared the initial state of the chamber, the rate at which bucket brigades could pour water in (volumetric inflow), the length of time pressure builds, and the effects on output flow rate. Next, the authors plan to examine the physiological Windkessel involved in the heart-aorta system.
Published Innovative tech shows promise to boost rubber production in US
(via sciencedaily.com) Original source With disease and high demand posing threats to the world's primary natural rubber supply in Southeast Asia, scientists are working to ramp up the U.S. rubber market by advancing methods to extract latex from two sustainable North American plant sources: a dandelion species and a desert shrub.
Published Gulls swap natural for urban habitats, machine-learning study finds
(via sciencedaily.com) Original source The study is the first of its kind to compile a three-year dataset using a citizen science-based, opportunistic research method to include a large sample of gulls and other sub-Arctic birds in urban Alaska. The study provides a current snapshot of the habitat shift to an urban landscape.
Published A new perspective on the temperature inside tropical forests
(via sciencedaily.com) Original source New worldwide maps of temperatures inside tropical forests show that global warming affect different way in different parts of the forests. Undergrowth level temperature of the tropical forests can be even 4 degrees less than average temperature of the area.
Published Links discovered between weather patterns and power outages could help UK protect itself from disruptive weather
(via sciencedaily.com) Original source The behavior of specific weather patterns and their impact on power faults could be used to develop a weather pattern - conditioned fault forecasting system for power system operators.
Published Uncovering the secrets behind the silent flight of owls
(via sciencedaily.com) Original source Owls produce negligible noise while flying. While many studies have linked the micro-fringes in owl wings to their silent flight, the exact mechanisms have been unclear. Now, a team of researchers has uncovered the effects of these micro-fringes on the sound and aerodynamic performance of owl wings through computational fluid dynamic simulations. Their findings can inspire biomimetic designs for the development of low-noise fluid machinery.
Published Delhi smog: India's cities must look beyond their limits to clean up air pollution
(via sciencedaily.com) Original source Delhi needs the help of its rural neighbors to finally beat its killer smog problem, concludes a recent review.
Published Major climate benefits with electric aircraft
(via sciencedaily.com) Original source Researchers have performed the world's first life cycle assessment (LCA) of an existing, two-seater, all-electric aircraft, with a direct comparison to an equivalent fossil fuel-powered one. According to the study, after just one quarter of the expected lifespan of the electric aircraft, the climate impact is lower than that of the fossil fuel-based aircraft, provided that green electricity is used. The downside, however, is increased mineral resource scarcity.
Published Planetary Commons: Fostering global cooperation to safeguard critical Earth system functions
(via sciencedaily.com) Original source Tipping elements of the Earth system should be considered global commons, researchers argue. Global commons cannot -- as they currently do -- only include the parts of the planet outside of national borders, like the high seas or Antarctica. They must also include all the environmental systems that regulate the functioning and state of the planet, namely all systems on Earth we all depend on, irrespective on where in the world we live. This calls for a new level of transnational cooperation, leading experts in legal, social and Earth system sciences say. To limit risks for human societies and secure critical Earth system functions they propose a new framework of planetary commons to guide governance of the planet.