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Categories: Geoscience: Geochemistry, Space: Astronomy

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Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Drought, soil desiccation cracking, and carbon dioxide emissions: an overlooked feedback loop exacerbating climate change      (via sciencedaily.com)     Original source 

Soil stores 80 percent of carbon on earth, yet with increasing cycles of drought, that crucial reservoir is cracking and breaking down, releasing even more greenhouse gases creating an amplified feedback loop that could accelerate climate change.

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

Sustainable plastics from agricultural waste      (via sciencedaily.com)     Original source 

Scientists have developed a sustainable method to make high-performance plastics from agricultural leftovers, turning them into valuable materials.

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

Molecular simulations of ammonia mixtures support search for renewable fuels      (via sciencedaily.com)     Original source 

Ammonia is an important molecule with many applications. The end product of the famed Haber-Bosch process, it is commonly synthesized to capture nitrogen for fertilizers, and is used for refrigeration, in cleaning products, and in the production of pharmaceuticals. Recently, this modest molecule has also attracted interest as a potential resource for addressing one of today's most pressing challenges -- the need for reliable and abundant renewable fuels.

Chemistry: General Energy: Alternative Fuels Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Physics: Optics
Published

New high-performance solar cell material      (via sciencedaily.com)     Original source 

A new study reports the discovery of an entirely new stable, earth-abundant, high-performance material for solar absorbers -- the central part of a solar cell that turns light into electricity. While identifying new solar materials is typically very time-consuming, the researchers used a unique high-throughput computational screening method to quickly evaluate around 40,000 candidate materials.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
Published

AI analysis of historical satellite images show USSR collapse in 1990s increased methane emissions, despite lower oil and gas production      (via sciencedaily.com)     Original source 

An AI-powered analysis of 25 years of satellite images yields the surprising finding that methane emissions in Turkmenistan, a former Soviet republic and major oil-producing region, actually increased in the years following the dissolution of the Soviet Union.

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Vehicle brakes produce charged particles that may harm public health      (via sciencedaily.com)     Original source 

Scientists know relatively little about particles released into the air when a vehicle driver brakes, though evidence suggests those particles may be more harmful to health than particles exiting the tailpipe.

Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: Exploration Space: General Space: The Solar System
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Scientists propose new theory that explains sand ripples on Mars and on Earth      (via sciencedaily.com)     Original source 

Sand ripples are symmetrical. Yet wind -- which causes them -- is very much not. Furthermore, sand ripples can be found on Mars and on Earth. They would be even more fascinating if the same effect found on Mars could be found here on Earth as well. What if one unified theory could explain their formation on both planets?

Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Climate policies to reduce motor vehicle emissions can improve children's health, save money      (via sciencedaily.com)     Original source 

A new study finds that policies to reduce carbon dioxide (CO2) emissions from motor vehicles combined with investments in electric vehicles and public transportation would reduce air pollution and bring large benefits to children's health. They would also save money.

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

Peering into the tendrils of NGC 604 with NASA's Webb      (via sciencedaily.com)     Original source 

The formation of stars and the chaotic environments they inhabit is one of the most well-studied, but also mystery-shrouded, areas of cosmic investigation. The intricacies of these processes are now being unveiled like never before by NASA's James Webb Space Telescope.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General
Published

Nasa’s Webb, Hubble telescopes affirm universe’s expansion rate, puzzle persists      (via sciencedaily.com)     Original source 

When you are trying to solve one of the biggest conundrums in cosmology, you should triple check your homework. The puzzle, called the 'Hubble Tension,' is that the current rate of the expansion of the universe is faster than what astronomers expect it to be, based on the universe's initial conditions and our present understanding of the universe's evolution.

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

A better handle on the emissions budget for the Paris climate targets      (via sciencedaily.com)     Original source 

Scientists have found a new way to calculate the total carbon emissions consistent with the Paris climate targets of 1.5 degrees Celsius and 2 degrees Celsius of global warming.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Geoscience: Severe Weather
Published

Rock weathering and climate: Low-relief mountain ranges are largest carbon sinks      (via sciencedaily.com)     Original source 

For many hundreds of millions of years, the average temperature at the surface of the Earth has varied by not much more than 20 degrees Celsius, facilitating life on our planet. To maintain such stable temperatures, Earth appears to have a 'thermostat' that regulates the concentration of atmospheric carbon dioxide over geological timescales, influencing global temperatures. The erosion and weathering of rocks are important parts of this 'thermostat.'

Chemistry: General Environmental: Water Geoscience: Geochemistry
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Pinging pipes could help to identify lead water lines without excavation      (via sciencedaily.com)     Original source 

A recent study showed that it is possible to discern the composition of a buried pipe by striking an accessible portion of it and monitoring the sound waves that reach the surface. This method could help water utility companies verify the location of lead water lines without having to break ground.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General
Published

Baby quasars: Growing supermassive black holes      (via sciencedaily.com)     Original source 

The James Webb Space Telescope makes one of the most unexpected findings within its first year of service: A high number of faint little red dots in the distant Universe could change the way we understand the genesis of supermassive black holes.

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

Viscose manufactured solely from recycled materials      (via sciencedaily.com)     Original source 

At present, viscose textiles are made of biomass from the forest, and there is no such thing as fully recycled viscose. Researchers have now succeeded in making new viscose -- from worn-out cotton sheets.

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

Finding new physics in debris from colliding neutron stars      (via sciencedaily.com)     Original source 

Neutron star mergers are a treasure trove for new physics signals, with implications for determining the true nature of dark matter, according to physicists.

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

Astronomers spot oldest 'dead' galaxy yet observed      (via sciencedaily.com)     Original source 

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when the universe was just 700 million years old, the oldest such galaxy ever observed.