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Categories: Environmental: General, Environmental: Wildfires

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Biology: Biochemistry Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
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Scientists unravel drivers of the global zinc cycle in our oceans, with implications for a changing climate      (via sciencedaily.com)     Original source 

The understanding of the global zinc cycle in our oceans has important implications in the context of warming oceans. A warmer climate increases erosion, leading to more dust in the atmosphere and consequently more dust being deposited into the oceans. More dust means more scavenging of zinc particles, leading to less zinc being available to sustain phytoplankton and other marine life, thereby diminishing the oceans' ability to absorb carbon.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Severe Weather Geoscience: Volcanoes
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Video analysis of Iceland 2010 eruption could improve volcanic ash forecasts for aviation safety      (via sciencedaily.com)     Original source 

Video footage of Iceland's 2010 Eyjafjallaj kull eruption is providing researchers with rare, up-close observations of volcanic ash clouds -- information that could help better forecast how far explosive eruptions disperse their hazardous ash particles.

Biology: Biochemistry Biology: Zoology Ecology: Animals Environmental: General
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Outdoor recreation noise affects wildlife behavior and habitat use, study finds      (via sciencedaily.com)     Original source 

We may go to the woods seeking peace and quiet, but are we taking our noise with us? A recent study indicates that the answer is yes -- and that this noise can trigger a fear response, as if escaping from predators. This new science calls into question whether otherwise high-quality habitat truly provides refugia for wildlife when recreationists are present and underscores the challenges land managers face in balancing outdoor recreational opportunities with wildlife conservation.

Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
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Public more confident connecting increasing heat, wildfires with climate change than other extreme weather events, study finds      (via sciencedaily.com)     Original source 

Researchers found that U.S. adults are fairly confident in linking wildfires and heat to climate change, but less confident when it comes to other extreme weather events like hurricanes, flooding or tornadoes.

Biology: Biochemistry Biology: General Biology: Marine Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
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Marine heatwaves devastate red gorgonians in the Medes Islands      (via sciencedaily.com)     Original source 

The increase in the frequency and intensity of marine heatwaves in recent decades is one of the effects of global climate change. A study shows that the extreme heatwave of 2022 caused an 'unprecedented' increase in mortality of the red gorgonian Paramuricea clavata, affecting 70% of the colonies located in the Montgr Natural Park, the Medes Islands and the Baix Ter. According to the researchers, these results are 'alarming and threaten the viability' of this species of great value for the biodiversity of benthic ecosystems, since it is considered to be an inhabitant-forming species.

Environmental: General Geoscience: Earthquakes
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Estimating the energy of past earthquakes from brecciation in a fault zone      (via sciencedaily.com)     Original source 

In the same way that the number of rings in a tree can tell us its age, the characteristics of rocks such as breccia can tell us about the history of a region. The breccia around Ichinokawa Mine (located in Ehime prefecture) are of particular interest, as the mine is located south of the Median Tectonic Line. Researchers uncovered how breccia can provide valuable evidence to estimate the energy of past earthquakes in the area.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate Paleontology: Fossils Paleontology: General
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Ancient ocean slowdown warns of future climate chaos      (via sciencedaily.com)     Original source 

When it comes to the ocean's response to global warming, we're not in entirely uncharted waters. A new study shows that episodes of extreme heat in Earth's past caused the exchange of waters from the surface to the deep ocean to decline.

Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Dolphins with elevated mercury levels in Florida and Georgia      (via sciencedaily.com)     Original source 

Scientists found elevated mercury levels in dolphins in the U.S. Southeast. The highest levels were found in dolphins in Florida's St. Joseph and Choctawhatchee Bays. Researchers study dolphins because they are considered a sentinel species for oceans and human health. Like us, they are high up in the food chain, live long lives, and share certain physiological traits. Some of their diet is most vulnerable to mercury pollution and is also eaten by people.

Ecology: Trees Environmental: Ecosystems Environmental: Wildfires Geoscience: Geography
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New way to spot beetle-killed spruce can help forest, wildfire managers      (via sciencedaily.com)     Original source 

A new machine-learning system can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska, even in forests of low and moderate infestation where identification is otherwise difficult. The automated process can help forestry and wildfire managers in their decisions. That's critical as the beetle infestation spreads.

Biology: Marine Biology: Zoology Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Geography
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Pacific coast gray whales have gotten 13% shorter in the past 20-30 years, Oregon State study finds      (via sciencedaily.com)     Original source 

Gray whales that spend their summers feeding in the shallow waters off the Pacific Northwest coast have undergone a significant decline in body length since around the year 2000, a new study found.

Chemistry: Biochemistry Chemistry: General Engineering: Robotics Research Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Mobile monitoring for an airborne carcinogen in Louisiana's 'Cancer Alley'      (via sciencedaily.com)     Original source 

Louisiana's southeastern corridor is sometimes known colloquially as 'Cancer Alley' for its high cancer incidence rates connected to industrial air pollution. Most of the region's air pollution-related health risks are attributed to ethylene oxide, a volatile compound used to make plastics and sterilize medical equipment. Researchers measured concerning levels of ethylene oxide in this area with mobile optical instruments, a technique they say could improve health risk assessments.

Environmental: General Geoscience: Earth Science Geoscience: Geology Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: General
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Laser tests reveal new insights into key mineral for super-Earths      (via sciencedaily.com)     Original source 

Scientists have for the first time observed how atoms in magnesium oxide morph and melt under ultra-harsh conditions, providing new insights into this key mineral within Earth's mantle that is known to influence planet formation.

Environmental: General Geoscience: Environmental Issues
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Site new care homes near trees and away from busy roads to protect residents' lungs      (via sciencedaily.com)     Original source 

To shield older residents from dangerous air pollution, new care homes should be built as far from heavy traffic as possible, according to a new study.

Biology: Zoology Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
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Cocaine trafficking threatens critical bird habitats      (via sciencedaily.com)     Original source 

In addition to its human consequences, cocaine trafficking harms the environment and threatens habitats important to dozens of species of migratory birds, according to a new study.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
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Significant increase in nitrous-oxide emissions from human activities, jeopardizing climate goals      (via sciencedaily.com)     Original source 

Emissions of nitrous-oxide (N2O) -- a potent greenhouse gas -- have continued to rise unabated over the past four decades, according to an international team of scientists.

Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
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Specialist and migratory birds at greater risk under climate change      (via sciencedaily.com)     Original source 

Following decades of decline, even fewer birds will darken North American skies by the end of the century, according to a new analysis. The study examines the long-term effects of climate change on the abundance and diversity of bird groups across the continent as a whole while accounting for additional factors that put birds at risk.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Soil bacteria respire more CO2 after sugar-free meals      (via sciencedaily.com)     Original source 

Researchers tracked how plant matter moves through bacteria's metabolism. Microbes respire three times as much carbon dioxide (CO2) from non-sugar carbons from lignin compared to sugar from cellulose. Although microbes consume both types of plant matter at the same time, each type enters a different metabolic pathway. Findings could improve predictions of how climate-dependent changes in soil carbon types will affect microbial CO2 production.

Anthropology: General Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils
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Scientists unlock secrets of how archaea, the third domain of life, makes energy      (via sciencedaily.com)     Original source 

An international scientific team has redefined our understanding of archaea, a microbial ancestor to humans from two billion years ago, by showing how they use hydrogen gas. The findings explain how these tiny lifeforms make energy by consuming and producing hydrogen. This simple but dependable strategy has allowed them to thrive in some of Earth's most hostile environments for billions of years.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Major milestone in cutting harmful gases that deplete ozone layer and worsen global warming      (via sciencedaily.com)     Original source 

A new study has revealed significant progress in the drive to reduce levels in the atmosphere of chemicals that destroy Earth's ozone layer, confirming the success of historic regulations limiting their production.