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Categories: Ecology: Research, Geoscience: Geochemistry

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Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Study of urban moss raises concerns about lead levels in older Portland neighborhoods      (via sciencedaily.com)     Original source 

Lead levels in moss are as much as 600 times higher in older Portland, Oregon, neighborhoods where lead-sheathed telecommunications cables were once used compared to lead levels in nearby rural areas, a new study of urban moss has found.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Warehousing industry increases health-harming pollutants, research shows      (via sciencedaily.com)     Original source 

A new study shows an average 20-percent spike of nitrogen dioxide polluting the air for communities located near huge warehouses. And people of color are harder hit.

Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology
Published

New study supports stable mantle chemistry dating back to Earth's early geologic history and over its prodigious evolution      (via sciencedaily.com)     Original source 

A new analysis of rocks thought to be at least 2.5 billion years old helps clarify the chemical history of Earth's mantle -- the geologic layer beneath the planet's crust. The findings hone scientists' understanding of Earth's earliest geologic processes, and they provide new evidence in a decades-long scientific debate about the geologic history of Earth. Specifically, the results provide evidence that the oxidation state of the vast majority of Earth's mantle has remained stable through geologic time and has not undergone major transitions, contrary to what has been suggested previously by other researchers.

Biology: Evolutionary Ecology: Nature Ecology: Research Offbeat: General Offbeat: Plants and Animals
Published

Butterflies accumulate enough static electricity to attract pollen without contact      (via sciencedaily.com)     Original source 

Butterflies and moths collect so much static electricity whilst in flight, that pollen grains from flowers can be pulled by static electricity across air gaps of several millimeters or centimeters.

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

Researchers develop more environmentally friendly and cost-effective method for soil remediation      (via sciencedaily.com)     Original source 

Chemists have developed a rapid electrothermal mineralization (REM) process, which in seconds can remediate the accumulation of synthetic chemicals that can contaminate soil and the environment.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Best bioenergy crops for sustainable aviation fuels by U.S. region, policy goals      (via sciencedaily.com)     Original source 

Researchers analyzed the financial and environmental costs and benefits of four biofuels crops used to produce sustainable aviation fuels in the U.S. They found that each feedstock -- corn stover, energy sorghum, miscanthus or switchgrass -- performed best in a specific region of the rainfed United States. Their study will help growers and policymakers select the feedstocks most suited to meeting goals like reducing production costs, lowering greenhouse gas emissions and building soil carbon stocks.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Children's exposome associated with changes in serum metabolites      (via sciencedaily.com)     Original source 

The combined effect of environmental exposures and unhealthy lifestyle habits can affect children's cardiometabolic health in a way that exceeds their separate effects. A new study shows the benefit of measuring the combined effect of multiple environmental and lifestyle factors.

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

A promising new method uses light to clean up forever chemicals      (via sciencedaily.com)     Original source 

A room-temperature method to decompose perfluoroalkyl substances (PFASs) using visible LED light offers a promising solution for sustainable fluorine recycling and PFAS treatment.

Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science
Published

Tropical plant species are as threatened by climate change as widely feared, study confirms      (via sciencedaily.com)     Original source 

Biologists who set out to better understand the effects of climate change on plant species in tropical mountain regions found that even small variations in temperature and moisture can have massive impacts, threatening not only plants that live there, but also the ecosystems they support. A study based on labor-intensive fieldwork and analysis in tropical mountain regions shows that a warmer and drier climate will lead to massive losses of plant species.

Chemistry: Biochemistry Chemistry: General Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Converting captured carbon to fuel: Study assesses what's practical and what's not      (via sciencedaily.com)     Original source 

A new analysis sheds light on major shortfalls of a recently proposed approach to capture CO2 from air and directly convert it to fuel using electricity. The authors also provide a new, more sustainable, alternative.

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

Deep-ocean floor produces its own oxygen      (via sciencedaily.com)     Original source 

An international team of researchers has discovered that metallic minerals on the deep-ocean floor produce oxygen -- 13,000 feet below the surface. Discovery challenges long-held assumptions that only photosynthetic organisms generate Earth's oxygen. Minerals at the abyssal seafloor appear to act like geobatteries to produce oxygen in a process that does not require sunlight.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Waste Styrofoam can now be converted into polymers for electronics      (via sciencedaily.com)     Original source 

A new study describes a chemical reaction that can convert Styrofoam into a high-value conducting polymer known as PEDOT:PSS. Researchers also noted that the upgraded plastic waste can be successfully incorporated into functional electronic devices, including silicon-based hybrid solar cells and organic electrochemical transistors.

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

Converting wastewater to fertilizer with fungal treatment      (via sciencedaily.com)     Original source 

Creating fertilizers from organic waste can help reduce the consumption of fossil fuels and promote sustainable production. One way of doing this is through hydrothermal liquefaction (HTL), which converts biomass into biocrude oil through a high-temperature, high-pressure process. Two studies explore the use of a fungal treatment to convert the leftover wastewater into fertilizer for agricultural crops.