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Categories: Geoscience: Environmental Issues, Space: Astronomy

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Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
Published

Antarctic ice shelves hold twice as much meltwater as previously thought      (via sciencedaily.com)     Original source 

Slush -- water-soaked snow -- makes up more than half of all meltwater on the Antarctic ice shelves during the height of summer, yet is poorly accounted for in regional climate models. The findings could have profound implications for ice shelf stability and sea level rise.

Biology: Botany Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Groundbreaking discovery: Zinc can make crop yields more climate-resilient      (via sciencedaily.com)     Original source 

Climate change, drought, increased temperature and other stressors challenge agricultural sustainability. Researchers have now made an unexpected discovery: zinc plays a pivotal role in the plant response to abiotic stress. This groundbreaking discovery not only sheds light on the intricate mechanisms of plant growth but also holds promise for revolutionizing crop resilience, especially in legume-based agriculture.

Chemistry: Biochemistry Chemistry: General Chemistry: Thermodynamics Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather Physics: Optics
Published

Common plastics could passively cool and heat buildings with the seasons      (via sciencedaily.com)     Original source 

By restricting radiant heat flows between buildings and their environment to specific wavelengths, coatings engineered from common materials can achieve energy savings and thermal comfort that goes beyond what traditional building envelopes can achieve.

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

New twists on tornadoes: Earth scientist studies why U.S. has so many tornadoes      (via sciencedaily.com)     Original source 

Across the Midwest during the warmer months, studying the sky for signs of storms and tornadoes becomes one of the most popular pastimes. Working at the intersection of climate science and meteorology and using modeling, scientists are looking at the big picture of what causes severe storms and tornadoes -- and what dictates where they occur.

Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

US Clean Water Act leaves about 55% of water flowing out of rivers vulnerable to pollution      (via sciencedaily.com)     Original source 

The Supreme Court ruled last year that rivers that only flow in response to weather events -- called ephemeral streams -- do not fall under the protection of the Clean Water Act. New research suggests that this now leaves many U.S. waterways vulnerable to pollution.

Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Climate change and sea level rise pose an acute challenge for cities with combined sewer systems      (via sciencedaily.com)     Original source 

Older coastal cities, like Philadelphia, New York and Boston are at risk of being inundated by untreated sewage during floods. Due in part to the design of their combined sewer systems and in part due to sea level rise, these cities could be facing a growing public health crisis as climate change also drives more extreme precipitation. The group recently published research that modeled the potential extent of the problem in a section of the coastal city of Camden, New Jersey, and the effectiveness of one proposed intervention to help protect these communities.

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

Simple new process stores CO2 in concrete without compromising strength      (via sciencedaily.com)     Original source 

By using carbonated -- rather than still -- water during the concrete manufacturing process, a team of engineers has discovered a new way to store carbon dioxide (CO2) in the ubiquitous construction material.

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

El NiƱo forecasts extended to 18 months with innovative physics-based model      (via sciencedaily.com)     Original source 

As more attention is drawn to possible severe weather around the world scientists are looking to improve planning for possible droughts, floods and other scenarios. A team of researchers created a new tool that will allow forecasting of El Nino Southern Oscillation by up to 18 months.

Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Paleontology: Climate
Published

Ocean's loss of oxygen caused massive Jurassic extinction: Could it happen again?      (via sciencedaily.com)     Original source 

Researchers have found a chemical clue in Italian limestone that explains a mass extinction of marine life in the Early Jurassic period, 183 million years ago. Volcanic activity pumped out CO2, warming oceans and lowering their oxygen levels. The findings may foretell the impact climate change and oxygen depletion might have on today's oceans.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Pillars of creation star in new visualization from NASA's Hubble and Webb telescopes      (via sciencedaily.com)     Original source 

Made famous in 1995 by NASA's Hubble Space Telescope, the Pillars of Creation in the heart of the Eagle Nebula have captured imaginations worldwide with their arresting, ethereal beauty. Now, NASA has released a new 3D visualization of these towering celestial structures using data from NASA's Hubble and James Webb space telescopes. This is the most comprehensive and detailed multiwavelength movie yet of these star-birthing clouds.

Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Some landfill 'burps' contain airborne PFAS      (via sciencedaily.com)     Original source 

Many municipal landfills 'burp' gas from decomposing organic matter rather than letting it build up. And burps from buried waste containing per- and polyfluoroalkyl substances (PFAS) can release these 'forever chemicals' into the air, say researchers. Their study reports unexpectedly high levels of airborne PFAS at three landfills and demonstrates that vented gases and liquid by-products called leachates could transport similar amounts of these contaminants to the environment.

Chemistry: Thermodynamics Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: General
Published

Small, adsorbent 'fins' collect humidity rather than swim through water      (via sciencedaily.com)     Original source 

Clean, safe water is a limited resource and access to it depends on local bodies of water. But even dry regions have some water vapor in the air. To harvest small amounts of humidity, researchers developed a compact device with absorbent-coated fins that first trap moisture and then generate potable water when heated. They say the prototype could help meet growing demands for water, especially in arid locations.

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

Underwater mountains have a big impact on ocean circulation      (via sciencedaily.com)     Original source 

Colossal undersea mountains, towering up to thousands of metres high, stir up deep sea currents: impacting how our ocean stores heat and carbon. An international team used numerical modelling to quantify how underwater turbulence around these mountains, called seamounts, influences ocean circulation; finding it is an important mechanism in ocean mixing and one that is missing from climate models used in policymaking.

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

For many urban residents, it's even hotter than their weather app says      (via sciencedaily.com)     Original source 

There's a strong chance that last week's scorching temperatures were even hotter than reported for those living in underserved urban areas. New research from environmental engineers has shown that citizen science tools used to gauge heat in these urban areas likely understate the problem of heat islands due to a lack of weather stations. The researchers also suggest a statistical method to improve estimates of urban heat.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Team aims to improve safety of fertilizers made from wastewater sludge      (via sciencedaily.com)     Original source 

Fertilizers manufactured from the sludgy leftovers of wastewater treatment processes can contain traces of potentially hazardous organic chemicals, according to a new study. The research provides one of the most comprehensive looks at the chemical composition of so-called biosolids across the country and is the first step toward identifying common chemical contaminants that may need government regulation.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

New evidence for how heat is transported below the sun's surface      (via sciencedaily.com)     Original source 

Solar physicists have revealed the interior structure of the sun's supergranules, a flow structure that transports heat from the sun's hidden interior to its surface. The researchers' analysis of the supergranules presents a challenge to the current understanding of solar convection.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Telltale greenhouse gases could signal alien activity      (via sciencedaily.com)     Original source 

If aliens modified a planet in their solar system to make it warmer, we'd be able to tell. A new study identifies the artificial greenhouse gases that would be giveaways of a terraformed planet.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

First of its kind detection made in striking new Webb image      (via sciencedaily.com)     Original source 

For the first time, a phenomenon astronomers have long hoped to directly image has been captured by NASA's James Webb Space Telescope's Near-Infrared Camera (NIRCam). In this stunning image of the Serpens Nebula, the discovery lies in the northern area of this young, nearby star-forming region.

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

Mashed up purple marine bacteria makes an excellent eco-friendly fertilizer      (via sciencedaily.com)     Original source 

New research reports that biomass made from the purple photosynthetic marine bacterium Rhodovulum sulfidophilum is an excellent nitrogen fertilizer. The biomass fertilizer proved to be just as effective as common inorganic synthetic fertilizers but avoids several side effects that harm the environment, making it an eco-friendly alternative.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

A hidden treasure in the Milky Way -- Astronomers uncover ultrabright x-ray source      (via sciencedaily.com)     Original source 

Astronomers uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source.