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Categories: Geoscience: Earth Science, Geoscience: Geography

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Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Study finds pesticide use linked to Parkinson's in rocky mountain, great plains region      (via sciencedaily.com)     Original source 

Pesticides and herbicides used in farming have been linked to Parkinson's disease in the Rocky Mountain and Great Plains region of the country, according to a preliminary study.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography Offbeat: Earth and Climate Offbeat: General
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The West is best to spot UFOs      (via sciencedaily.com)     Original source 

Researchers identified environmental factors that explain why reports of Unidentified Anomalous Phenomena (UAP) are more common in certain regions of the country. Most sightings occur in the American West where proximity to public lands, dark skies and military installations afford more opportunities to see strange objects in the air. Understanding the environmental context of these sightings will make it easier to find explanations for their occurrence and help identify truly anomalous objects that may be a legitimate threat.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
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Climate change shrinking fish      (via sciencedaily.com)     Original source 

Fish weight in the western North Pacific Ocean dipped in the 2010s due to warmer water limiting food supplies, according to a new study. Researchers analyzed the individual weight and overall biomass of 13 species of fish. In the 1980s and 2010s, the fish were lighter. They attributed the first period of weight loss to greater numbers of Japanese sardine, which increased competition with other species for food. During the 2010s, while the number of Japanese sardine and chub mackerel moderately increased, the effect of climate change warming the ocean appears to have resulted in more competition for food, as cooler, nutrient-dense water could not easily rise to the surface. These results have implications for fisheries and policymakers trying to manage ocean resources under future climate change scenarios.

Ecology: Animals Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
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Chemistry in the ground affects how many offspring wild animals have      (via sciencedaily.com)     Original source 

Chemistry in the ground affect how many kids wild animals have Areas with more copper and selenium in the ground lead to higher reproductive success in wild musk oxen in Greenland.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Environmental: General Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
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Researchers are first to see at-risk bat flying over open ocean      (via sciencedaily.com)     Original source 

On a research cruise focused on marine mammals and seabirds, scientists earned an unexpected bonus: The first-ever documented sighting of a hoary bat flying over the open ocean.

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

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.

Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
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Significant glacial retreat in West Antarctica began in 1940s      (via sciencedaily.com)     Original source 

Among the vast expanse of Antarctica lies the Thwaites Glacier, the world's widest glacier measuring about 80 miles on the western edge of the continent. Despite its size, the massive landform is losing about 50 billion tons of ice more than it is receiving in snowfall, which places it in a precarious position in respect to its stability. Accelerating ice loss has been observed since the 1970s, but it is unclear when this significant melting initiated -- until now. A new study suggests that the significant glacial retreat of two glaciers on the west coast of Antarctica began in the 1940's, likely spurred by climate change.

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: Zoology Ecology: Animals Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Geoscience: Geography
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Birds and bee lessons as Pacific field trips also solve 'Michener's mystery'      (via sciencedaily.com)     Original source 

Eight new Pacific bee species and new insights into Fijian bird behaviour on Viti Levu Island have been described in new scientific studies. The research highlights the potential for species discovery, ecological and conservation knowledge and cultural engagement from Asia-Pacific research collaborations.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Cloud clustering causes more extreme rain      (via sciencedaily.com)     Original source 

Understanding cloud patterns in our changing climate is essential to making accurate predictions about their impact on society and nature. Scientists published a new study that uses a high-resolution global climate model to understand how the clustering of clouds and storms impacts rainfall extremes in the tropics. They show that with rising temperatures, the severity of extreme precipitation events increases.

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.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
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Barriers against Antarctic ice melt disappearing at the double      (via sciencedaily.com)     Original source 

Undersea anchors of ice that help prevent Antarctica's land ice from slipping into the ocean are shrinking at more than twice the rate compared with 50 years ago, research shows. More than a third of these frozen moorings, known as pinning points, have decreased in size since the turn of the century, experts say. Further deterioration of pinning points, which hold in place the floating ice sheets that fortify Antarctica's land ice, would accelerate the continent's contribution to rising sea levels, scientists warn.

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.

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.