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Categories: Energy: Technology, Geoscience: Geochemistry

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Chemistry: General Energy: Batteries Energy: Fossil Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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.

Biology: Biochemistry Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology
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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.

Computer Science: General Energy: Technology Physics: General
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Manipulated hafnia paves the way for next-gen memory devices      (via sciencedaily.com)     Original source 

A new study outlines progress toward making bulk ferroelectric and antiferroelectric hafnia available for use in a variety of applications, including high-performance computing.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology Biology: Molecular Environmental: General Geoscience: Geochemistry
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Don't overeat: How archaea toggle the nitrogen-uptake switch      (via sciencedaily.com)     Original source 

By tightly regulating nitrogen uptake, microorganisms avoid overeating nitrogen and thus wasting energy. Scientists now reveal how some methanogenic archaea manage to do so.

Chemistry: Biochemistry Chemistry: General Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Deepwater Horizon oil spill study could lead to overhaul of cleanup processes worldwide      (via sciencedaily.com)     Original source 

New research could lead to major improvements in marine oil spill cleanup processes. The innovative study assessed the impact of the Deepwater Horizon oil spill on microscopic seawater bacteria that perform a significant role in ecosystem functioning.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
Published

Ice age could help predict oceans' response to global warming      (via sciencedaily.com)     Original source 

A new way to measure the ocean oxygen level and its connections with carbon dioxide in the Earth's atmosphere during the last ice age could help explain the role oceans played in past glacial melting cycles and improve predictions of how ocean carbon cycles will respond to global warming.

Computer Science: General Energy: Batteries Energy: Technology
Published

Self-powered sensor automatically harvests magnetic energy      (via sciencedaily.com)     Original source 

Researchers have designed a self-powering, battery-free, energy-harvesting sensor. Using the framework they developed, they produced a temperature sensor that can harvest and store the energy from the magnetic field that exists in the open air around a wire.

Chemistry: Biochemistry Computer Science: Artificial Intelligence (AI) Energy: Technology Engineering: Robotics Research Offbeat: Computers and Math Offbeat: General
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Mini-robots modeled on insects may be smallest, lightest, fastest ever developed      (via sciencedaily.com)     Original source 

Two insect-like robots, a mini-bug and a water strider may be the smallest, lightest and fastest fully functional micro-robots ever known to be created. Such miniature robots could someday be used for work in areas such as artificial pollination, search and rescue, environmental monitoring, micro-fabrication or robotic-assisted surgery. Reporting on their work in the proceedings of the IEEE Robotics and Automation Society's International Conference on Intelligent Robots and Systems, the mini-bug weighs in at eight milligrams while the water strider weighs 55 milligrams. Both can move at about six millimeters a second.

Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Technology Environmental: General
Published

Machine learning method speeds up discovery of green energy materials      (via sciencedaily.com)     Original source 

Researchers have developed a framework that uses machine learning to accelerate the search for new proton-conducting materials, that could potentially improve the efficiency of hydrogen fuel cells.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Energy: Batteries Energy: Technology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry
Published

Next-generation batteries could go organic, cobalt-free for long-lasting power      (via sciencedaily.com)     Original source 

In the switch to 'greener' energy sources, the demand for rechargeable lithium-ion batteries is surging. However, their cathodes typically contain cobalt -- a metal whose extraction has high environmental and societal costs. Now, researchers in report evaluating an earth-abundant, carbon-based cathode material that could replace cobalt and other scarce and toxic metals without sacrificing lithium-ion battery performance.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Alternative Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Efficiently moving urea out of polluted water is coming to reality      (via sciencedaily.com)     Original source 

Researchers have developed a material to remove urea from water and potentially convert it into hydrogen gas. By building these materials of nickel and cobalt atoms with carefully tailored electronic structures, the group has unlocked the potential to enable these transition metal oxides and hydroxides to selectively oxidize urea in an electrochemical reaction. The team's findings could help use urea in waste streams to efficiently produce hydrogen fuel through the electrolysis process, and could be used to sequester urea from water, maintaining the long-term sustainability of ecological systems, and revolutionizing the water-energy nexus.

Chemistry: General Chemistry: Organic Chemistry Energy: Batteries Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Cobalt-free batteries could power cars of the future      (via sciencedaily.com)     Original source 

A new battery material could offer a more sustainable way to power electric cars. The lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel.

Biology: Zoology Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Rain can spoil a wolf spider's day, too      (via sciencedaily.com)     Original source 

Researchers found that wolf spiders can't signal others or perceive danger from predators as easily on rain-soaked leaves compared to dry ones. Even communicating with would-be mates is harder after it rains.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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US air pollution rates on the decline but pockets of inequities remain      (via sciencedaily.com)     Original source 

Our latest study shows there are racial/ethnic and socioeconomic disparities in air pollution emissions reductions, particularly in the industry and energy generation sectors. The findings provide a national investigation of air pollution emission changes in the 40 years following the enactment of the Clean Air Act (CAA). Until now, studies have primarily focused on evaluating air pollution disparities at a single time point, focusing on pollutant concentrations instead of emissions. A focus on emissions, however, has more direct implications for regulations and policies. In this study, the researchers used county-level data to evaluate racial/ethnic and socioeconomic disparities in air pollution emissions changes in the contiguous U.S. from 1970 to 2010.

Energy: Fossil Fuels Energy: Nuclear Energy: Technology Environmental: General Physics: General
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A non-proliferation solution: Using antineutrinos to surveil nuclear reactors      (via sciencedaily.com)     Original source 

Antineutrinos generated in nuclear fission can be measured to remotely monitor the operation of nuclear reactors and verify that they are not being used to produce nuclear weapons, report scientists. Thanks to a newly developed method, it is now possible to estimate a reactor's operation status, fuel burnup, and fuel composition based entirely on its antineutrino emissions. This technique could contribute massively to nuclear non-proliferation efforts and, in turn, safer nuclear energy.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Mathematics: Modeling
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New AI makes better permafrost maps      (via sciencedaily.com)     Original source 

New insights from artificial intelligence about permafrost coverage in the Arctic may soon give policy makers and land managers the high-resolution view they need to predict climate-change-driven threats to infrastructure such as oil pipelines, roads and national security facilities.

Biology: Botany Chemistry: General Ecology: Endangered Species Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Artificial 'power plants' harness energy from wind and rain      (via sciencedaily.com)     Original source 

Fake plants are moving into the 21st century! Researchers developed literal 'power plants' -- tiny, leaf-shaped generators that create electricity from a blowing breeze or falling raindrops. The team tested the energy harvesters by incorporating them into artificial plants.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Technology
Published

Study reveals a reaction at the heart of many renewable energy technologies      (via sciencedaily.com)     Original source 

Chemists have mapped how proton-coupled electron transfers happen at the surface of an electrode. Their results could help researchers design more efficient fuel cells, batteries, or other energy technologies.