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Categories: Geoscience: Geochemistry
Published Researchers want to use 'biochar' to combat climate change (via sciencedaily.com) Original source
A new review of research suggests that the nature-based technology biochar -- a carbon-rich material -- could be an important tool to use in agriculture to help mitigate climate change.
Published Montreal protocol is delaying first ice-free Arctic summer (via sciencedaily.com) Original source
New research shows that the 1987 global treaty, designed to protect the ozone layer, has postponed the occurrence of the first ice-free Arctic by as much as 15 years.
Published How a drought affects trees depends on what's been holding them back (via sciencedaily.com) Original source
Droughts can be good for trees. Certain trees, that is. Contrary to expectation, sometimes a record-breaking drought can increase tree growth. Why and where this happens is the subject of a new article.
Published What you count is not necessarily what counts (via sciencedaily.com) Original source
Seawater is full of bacteria, hundreds of thousands live in every liter. But the sheer number of bacteria living in the water does not necessarily mean a lot. More important is how active they are and how quickly they duplicate.
Published Fine particulate matter catalyzes oxidative stress in the lungs (via sciencedaily.com) Original source
Study sheds new light on the adverse health effects of air pollution: hydrogen peroxide production of fine particles may not be as important as previously assumed. A new study reveals that the adverse health effects of fine particulate matter (PM2.5) are attributable to the conversion of peroxides into more reactive species such as the hydroxyl radical (OH) rather than the direct chemical production of hydrogen peroxide (H2O2) as previously thought.
Published Eruption of Tonga underwater volcano found to disrupt satellite signals halfway around the world (via sciencedaily.com) Original source
Researchers found that the Hunga-Tonga eruption was associated with the formation of an equatorial plasma bubble in the ionosphere, a phenomenon associated with disruption of satellite-based communications. Their findings also suggest that a long-held atmospheric model should be revised.
Published Microorganisms' climate adaptation can slow down global warming (via sciencedaily.com) Original source
A new study shows that the ability of microorganisms to adapt to climate warming will slow down global warming by storing carbon in soil.
Published Driving on sunshine: Clean, usable liquid fuels made from solar power (via sciencedaily.com) Original source
Researchers have developed a solar-powered technology that converts carbon dioxide and water into liquid fuels that can be added directly to a car's engine as drop-in fuel.
Published Watch these cells rapidly create protrusions for exploration and movement (via sciencedaily.com) Original source
In order to move, cells must be able to rapidly change shape. A team of researchers show that cells achieve this by storing extra 'skin' in folds and bumps on their surface. This cell surface excess can be rapidly deployed to cover temporary protrusions and then folded away for next time.
Published A better way to study ocean currents (via sciencedaily.com) Original source
Computer scientists and oceanographers developed a machine-learning model that generates more accurate predictions about the velocities of ocean currents. The model could help make more precise weather forecasts or effectively predict how oil will spread after a spill.
Published African smoke over the Amazon (via sciencedaily.com) Original source
Up to two-thirds of the soot above the central Amazon rainforest originates in Africa. Researchers differentiate soot particles using their relative properties and attribute them to their respective points of origin. They found that bush fires and burning savannah in the north and south of Africa make a substantial contribution to air pollution in the central Amazon all year round, thereby playing an important role in the earth radiation budget and water cycle. This is caused by the efficient transatlantic transport of particles through the atmosphere.
Published Scientists reveal breakthrough that could lead to cleaner hydrogen energy (via sciencedaily.com) Original source
Chemists have taken a big step toward splitting hydrogen and oxygen molecules to make pure hydrogen -- without using fossil fuels. Results from pulse radiolysis experiments have laid bare the complete reaction mechanism for an important group of 'water-splitting' catalysts. The work means scientists are closer to making pure hydrogen from renewable energy, an energy source that could contribute to a greener future for the nation and world.
Published Out of this world control on Ice Age cycles (via sciencedaily.com) Original source
A research team, composed of climatologists and an astronomer, have used an improved computer model to reproduce the cycle of ice ages (glacial periods) 1.6 to 1.2 million years ago. The results show that the glacial cycle was driven primarily by astronomical forces in quite a different way than it works in the modern age. These results will help us to better understand the past, present, and future of ice sheets and the Earth's climate.
Published Heat-loving marine bacteria can help detoxify asbestos (via sciencedaily.com) Original source
Researchers have shown that extremophilic bacteria from high temperature marine environments can be used to reduce asbestos' toxicity.
Published Porous crystals made from plant extracts purify water from pharmaceutical pollutants (via sciencedaily.com) Original source
Researchers have developed porous crystals made from pomegranate extract to capture and degrade pharmaceutical molecules found in local municipal wastewater.
Published With formic acid towards CO2 neutrality (via sciencedaily.com) Original source
Researchers develop a new method for the sustainable use of carbon dioxide.
Published Land use linked to water quality and quantity (via sciencedaily.com) Original source
Researchers recently published a study that focuses on the Sudbury-Assabet and Concord watershed in eastern Massachusetts, and which links hydrological changes, including floods, drought and runoff, to changing patterns of land use.
Published Bacteria: Radioactive elements replace essential rare earth metals (via sciencedaily.com) Original source
Bacteria can use certain radioactive elements to sustain their metabolism.
Published Paper refutes assertion that effects of bottom trawling on blue carbon can be compared to that of global air travel (via sciencedaily.com) Original source
A new paper refutes previous findings on the amount of CO2 released from the seabed by bottom trawling. The previous paper made significant headlines around the world on release in 2021, as it equated the carbon released by bottom trawling to be of a similar magnitude to the CO2 created by the global airline industry.
Published Dark clouds on the horizon (via sciencedaily.com) Original source
Our industrialized society releases many and various pollutants into the world. Combustion in particular produces aerosol mass including black carbon. Although this only accounts for a few percent of aerosol particles, black carbon is especially problematic due to its ability to absorb heat and impede the heat reflection capabilities of surfaces such as snow. So, it's essential to know how black carbon interacts with sunlight. Researchers have quantified the refractive index of black carbon to the most accurate degree yet which might impact climate models.