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Categories: Environmental: Water, Geoscience: Geochemistry

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Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General Physics: Optics
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Researchers develop novel method to photosynthesize hydrogen peroxide using water and air      (via sciencedaily.com)     Original source 

Researchers have developed a microporous covalent organic framework with dense donor-acceptor lattices and engineered linkages for the efficient and clean production of hydrogen peroxide through the photosynthesis process with water and air.

Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Want fewer microplastics in your tap water? Try boiling it first      (via sciencedaily.com)     Original source 

Nano- and microplastics are seemingly everywhere -- water, soil and the air. While many creative strategies have been attempted to get rid of these plastic bits, one unexpectedly effective solution for cleaning up drinking water, specifically, might be as simple as brewing a cup of tea or coffee. Boiling and filtering calcium-containing tap water could help remove nearly 90% of the nano- and microplastics present.

Biology: Biochemistry Biology: Botany Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Environmental: Water Geoscience: Environmental Issues
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Walleye struggle with changes to timing of spring thaw      (via sciencedaily.com)     Original source 

Walleye are one of the most sought-after species in freshwater sportfishing, a delicacy on Midwestern menus and a critically important part of the culture of many Indigenous communities. They are also struggling to survive in the warming waters of the Midwestern United States and Canada. According to a new study, part of the problem is that walleye are creatures of habit, and the seasons -- especially winter -- are changing so fast that this iconic species of freshwater fish can't keep up.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Low-Temperature Plasma used to remove E. coli from hydroponically grown crops      (via sciencedaily.com)     Original source 

In a new study, a team sterilized a hydroponic nutrient solution using low-temperature plasma generated from electricity and the oxygen in the atmosphere. This new sterilization technique may allow farmers to grow crops without the use of chemical pesticides, representing an important advance in agricultural technology for sustainable crop production.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
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Scientists propose new method for tracking elusive origins of CO2 emissions from streams      (via sciencedaily.com)     Original source 

A team of researchers that specializes in accounting for the carbon dioxide release by streams, rivers and lakes recently demonstrated that the chemical process known as 'carbonate buffering' can account for the majority of emissions in highly alkaline waters. Furthermore, carbonate buffering distorts the most commonly used method of tracking the origins of CO2 in streams. The research proposes a better method for tracking the origin of riverine CO2 emissions.

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

Black carbon sensor could fill massive monitoring gaps      (via sciencedaily.com)     Original source 

Black carbon is up to 25 times more hazardous to human health than other airborne particles of a similar size. Standard sensors are expensive and burdensome, resulting in sparse coverage in regions infamous for poor air quality, such as the greater Salt Lake City area. A University of Utah-led study found that a portable, more affordable sensor recorded black carbon concentrations as accurately as the most widely used instrument for monitoring black carbon in real time. The portable sensor could help expand an accurate observation network to establish disease risk and create effective public health policies.

Biology: Biochemistry Biology: General Biology: Microbiology Ecology: Animals Environmental: Ecosystems Environmental: Water Geoscience: Environmental Issues Geoscience: Geography
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Scientists assemble a richer picture of the plight and resilience of the foothill yellow-legged frog      (via sciencedaily.com)     Original source 

Up to only a few inches in length, with a lemon-hued belly, the foothill yellow-legged frog may seem unassuming. But its range once stretched from central Oregon to Baja California. In 2023, it was listed under the federal Endangered Species Act. Its rapidly decreasing range is due in part to a fungal pathogen called Batrachochytrium dendrobatidis, or Bd, that has devastated amphibians around the world.

Biology: General Biology: Microbiology Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
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Global warming increases the diversity of active soil bacteria      (via sciencedaily.com)     Original source 

Warmer soils harbor a greater diversity of active microbes, according to a new study. The study represents a significant shift in our understanding of how microbial activity in the soil influences the global carbon cycle and possible feedback mechanisms on the climate. Until now, scientists have assumed that higher soil temperatures accelerate the growth of microbes, thus increasing the release of carbon into the atmosphere. However, this increased release of carbon is actually caused by the activation of previously dormant bacteria.

Chemistry: General Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology
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UBC Okanagan researchers look to the past to improve construction sustainability      (via sciencedaily.com)     Original source 

Researchers are revisiting old building practices -- the use of by-products and cast-offs -- as a way to improve building materials and sustainability of the trade. A technique known as rammed earth construction uses materials that are alternatives to cement and are often more readily available in the environment. One such alternative is wood fly ash, a by-product of pulp mills and coal-fired power plants.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues
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Wetlands, parks and even botanical gardens among the best ways to cool cities during heatwaves      (via sciencedaily.com)     Original source 

Botanical gardens are not just beautiful -- they can cool the city air by 5 C during heatwaves, according to the most comprehensive review of its kind. Parks and wetlands have a similar effect.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues
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Streams connected to groundwater show improved detoxification and microbial diversity      (via sciencedaily.com)     Original source 

Streams with ample connections to shallow groundwater flow-paths have greater microbial diversity and are more effective at preventing toxic forms of metals -- often products of upstream mining -- from entering and being transported downstream.

Biology: Biochemistry Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
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Carbon emissions from the destruction of mangrove forests predicted to increase by 50,000% by the end of the century      (via sciencedaily.com)     Original source 

The annual rate of carbon emissions due to the degradation of carbon stocks in mangrove forests is predicted to rise by nearly 50,000% by the end of the century, according to a new study. Mangroves in regions such as southern India, southeastern China, Singapore and eastern Australia are particularly affected.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Severe Weather
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Air pollution hides increases in rainfall      (via sciencedaily.com)     Original source 

In a new study, researchers broke down how human-induced greenhouse gas and aerosol emissions influence rainfall in the United States. Greenhouse gas emissions increase rainfall, while aerosols have a long-term drying effect as well as short-term impacts that vary with the seasons. As aerosols decrease, their long-term drying effect will likely diminish, causing rainfall averages and extremes to rapidly increase.

Ecology: General Environmental: Ecosystems Geoscience: Geochemistry Geoscience: Landslides Geoscience: Oceanography Geoscience: Severe Weather
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Stronger storms free more nutrients from mud flats      (via sciencedaily.com)     Original source 

If storms become stronger in the future due to climate change, more nitrogen may be released from the bottom of coastal seas.

Geoscience: Environmental Issues Geoscience: Geochemistry
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New study is first step in predicting carbon emissions in agriculture      (via sciencedaily.com)     Original source 

Researchers have demonstrated that it is possible to provide accurate, high-resolution predictions of carbon cycles in agroecosystems, which could help mitigate the impacts of climate change.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Energy: Batteries Geoscience: Geochemistry
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A new vibrant blue pottery pigment with less cobalt      (via sciencedaily.com)     Original source 

Whether ultramarine, cerulean, Egyptian or cobalt, blue pigments have colored artworks for centuries. Now, seemingly out of the blue, scientists have discovered a new blue pigment that uses less cobalt but still maintains a brilliant shine. Though something like this might only happen once in a blue moon, the cobalt-doped barium aluminosilicate colorant withstands the high temperatures found in a kiln and provides a bright color to glazed tiles.

Anthropology: General Archaeology: General Environmental: Water Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Environmental Issues Geoscience: Geology Geoscience: Oceanography Geoscience: Volcanoes Paleontology: Climate
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Biggest Holocene volcano eruption found by seabed survey      (via sciencedaily.com)     Original source 

A detailed survey of the volcanic underwater deposits around the Kikai caldera in Japan clarified the deposition mechanisms as well as the event's magnitude. As a result, the research team found that the event 7,300 years ago was the largest volcanic eruption in the Holocene by far.

Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Paleontology: Climate
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Utah's Bonneville Salt Flats has long been in flux      (via sciencedaily.com)     Original source 

It has been long assumed that Utah's Bonneville Salt Flats was formed as its ancient namesake lake dried up 13,000 years ago. But new research has gutted that narrative, determining these crusts did not form until several thousand years after Lake Bonneville disappeared, which could have important implications for managing this feature that has been shrinking for decades to the dismay of the racing community and others who revere the saline pan 100 miles west of Salt Lake City. Relying on radiocarbon analysis of pollen found in salt cores, the study concludes the salt began accumulating between 5,400 and 3,500 years ago, demonstrating how this geological feature is not a permanent fixture on the landscape.

Environmental: Water Geoscience: Earthquakes Geoscience: Geography Geoscience: Landslides
Published

New detection method aims to warn of landslide tsunamis      (via sciencedaily.com)     Original source 

Researchers have devised a way to remotely detect large landslides within minutes of occurrence and to quickly determine whether they are close to open water and present a tsunami hazard.