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Categories: Geoscience: Geochemistry

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Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Closed loop for circular economy: New polymer recycling strategy ensures both high stability and complete recyclability      (via sciencedaily.com) 

Large amounts of plastic waste are incinerated or deposited in landfills. This degrades the environment and depletes valuable resources. In this light, recycling plastics such as polymers is promising. However, recycling diminishes their quality. Recently, researchers have proposed a 'closed-loop' recycling process based on polymer microparticles. It produces fully recyclable polymer films with high mechanical stability and fracture energy, which they retain upon recycling.

Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
Published

New wood-based technology removes 80% of dye pollutants in wastewater      (via sciencedaily.com) 

Researchers have developed a new method that can easily purify contaminated water using a cellulose-based material. This discovery could have implications for countries with poor water treatment technologies and combat the widespread problem of toxic dye discharge from the textile industry.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Biology: Molecular Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Environmental: General Geoscience: Geochemistry
Published

Photosynthesis 'hack' could lead to new ways of generating renewable energy      (via sciencedaily.com) 

Researchers have 'hacked' the earliest stages of photosynthesis, the natural machine that powers the vast majority of life on Earth, and discovered new ways to extract energy from the process, a finding that could lead to new ways of generating clean fuel and renewable energy.

Biology: Biochemistry Biology: Microbiology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Next epidemic could be spotted early in wastewater      (via sciencedaily.com)     Original source 

Researchers behind the UK's first pilot public health surveillance system based on analysis of wastewater say that routine monitoring at sewage treatment works could provide a powerful early warning system for the next flu or norovirus epidemic, alerting hospitals to prepare and providing public health agencies with vital health information.

Biology: Zoology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

New animal welfare scoring system could enable better-informed food and farming choices      (via sciencedaily.com) 

Scientists have come up with a system of measuring animal welfare that enables reliable comparison across different types of pig farming.

Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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The devil is in the details: Re-imagining fertilizer precursor synthesis      (via sciencedaily.com) 

Researchers have improved the Faradaic efficiency of the nitrogen reduction reaction into ammonia by straightforward optimization of chemical process parameters. They found that trace water was the probable source of the high selectivity by facilitating incorporation of lithium oxide into the solid electrolyte interphase. These findings will also aid optimization of other analogous reactions, and thus help the chemicals industry optimize the sustainability of one of the most carbon-intensive reactions globally.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: Optics
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Synthesis gas and battery power from sunlight energy      (via sciencedaily.com) 

Plants use photosynthesis to harvest energy from sunlight. Now researchers have applied this principle as the basis for developing new sustainable processes which in the future may produce syngas (synthetic gas) for the large-scale chemical industry and be able to charge batteries.

Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
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Human and ocean health impacts of ocean plastics      (via sciencedaily.com) 

Researchers from the fields of healthcare, ocean science, and social science have collaborated to quantify plastic's considerable risks to all life on Earth. The Minderoo-Monaco Commission on Plastics and Human Health report presents a comprehensive analysis showing plastics as a hazard at every stage of their life cycle.

Chemistry: Biochemistry Chemistry: General Energy: Nuclear Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Nitrate can release uranium into groundwater      (via sciencedaily.com) 

A team has experimentally confirmed that nitrate, a compound common in fertilizers and animal waste, can help transport naturally occurring uranium from the underground to groundwater. The new research backs a previous study showing that aquifers contaminated with high levels of nitrate -- including the High Plains Aquifer residing beneath Nebraska -- also contain uranium concentrations far exceeding a threshold set by the Environmental Protection Agency. Uranium concentrations above that EPA threshold have been shown to cause kidney damage in humans, especially when regularly consumed via drinking water.

Biology: Botany Ecology: Invasive Species Ecology: Nature Ecology: Trees Environmental: Ecosystems Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Douglas-fir in Klamath Mountains are in 'decline spiral'      (via sciencedaily.com) 

Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a 'decline spiral' in parts of the region.

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

Recycling: Researchers separate cotton from polyester in blended fabric      (via sciencedaily.com) 

Researchers found they could separate blended cotton and polyester fabric using enzymes -- nature's tools for speeding chemical reactions. Ultimately, they hope their findings will lead to a more efficient way to recycle the fabric's component materials, thereby reducing textile waste.

Biology: General Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Ecosystems Geoscience: Geochemistry
Published

Coffee plantations limit birds' diets      (via sciencedaily.com) 

A new study explores a record of birds' diets preserved in their feathers and radio tracking of their movements to find that birds eat far fewer invertebrates in coffee plantations than in forests, suggesting that the disturbance of their ecosystem significantly impacts the birds' dietary options.

Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Rivers and streams in the Andean Cordillera are hot spots for greenhouse gases emissions      (via sciencedaily.com) 

Researchers show that rivers in the Andean mountains contribute 35% and 72% of riverine emissions of carbon dioxide (CO2 ) and methane (CH4 ) in the Amazon basin, the world's largest river.

Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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New study counts the environmental cost of managing Japanese knotweed      (via sciencedaily.com) 

New research has looked at the long-term environmental impact of different methods to control Japanese knotweed. Different ways of trying to control the invasive species have developed over the years but now, as sustainability becomes increasingly important, understanding the effect of these management methods is vital.This new study examines at the entire life cycle and long-term impacts of different management approaches.

Biology: Microbiology Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geochemistry Paleontology: Fossils Paleontology: General
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Fossil site is 'Rosetta Stone' for understanding early life      (via sciencedaily.com) 

Leading edge technology has uncovered secrets about a world-renowned fossil hoard that could offer vital clues about early life on Earth. Researchers who analyzed the 400 million-year-old cache, found in rural north-east Scotland, say their findings reveal better preservation of the fossils at a molecular level than was previously anticipated.

Chemistry: General Engineering: Robotics Research Environmental: Water Geoscience: Geochemistry
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Electronic skin as flexible as crocodile skin      (via sciencedaily.com) 

A research team has developed a crocodile-skin-inspired omnidirectionally stretchable pressure sensor.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Environmental: Water Geoscience: Geochemistry
Published

New approach to harvesting aerial humidity with organic crystals      (via sciencedaily.com) 

Researchers have reported a novel method of harvesting water from naturally occurring sources such as fog and dew.

Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
Published

Recovering tropical forests offset just one quarter of carbon emissions from new tropical deforestation and forest degradation      (via sciencedaily.com) 

A pioneering global study has found deforestation and forests lost or damaged due to human and environmental change, such as fire and logging, are fast outstripping current rates of forest regrowth.