Current Erosion News and Events

Current Erosion News and Events, Erosion News Articles.
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Tracking down the causes of heart attack
Heart attacks strike suddenly and have a range of different triggers. Researchers from Charité - Universitätsmedizin Berlin and the German Centre for Cardiovascular Research (DZHK) were able to uncover a further underlying cause. Studying arterial deposits (plaque) in patients with acute coronary syndrome, the researchers found that, in some patients, these were characterized by activated immune cells which, as a result of altered flow conditions within the vessel, had accumulated on the interior arterial wall, causing damage to the arterial lining. (2020-11-10)

RUDN University soil scientist: Deforestation affects the bacterial composition of the soil
A soil scientist from RUDN University studied the effect of forest conversion on the properties of the soil: its acidity, carbon and nitrogen resources, bacterial composition, and the activity of microorganisms. The study can help improve the methods of soil cultivation after deforestation, namely, select the best fertilizers, prevent erosion, slow down nutrient depletion, and balance the composition of the bacterial community. (2020-11-09)

NYUAD study finds stellar flares can lead to the diminishment of a planet's habitability
In a new study researchers, led by Research Scientist Dimitra Atri of the Center for Space Science at NYU Abu Dhabi (NYUAD), identified which stars were most likely to host habitable exoplanets based on the calculated erosion rates of the planetary atmospheres. (2020-11-08)

Landscape to atomic scales: Researchers apply new approach to pyrite oxidation
Pyrite, or fool's gold, is a common mineral that reacts quickly with oxygen when exposed to water or air, such as during mining operations, and can lead to acid mine drainage. Little is known, however, about the oxidation of pyrite in unmined rock deep underground. (2020-10-29)

Beaches can survive sea-level rises as long as they have space to move
An international team of coastal scientists has dismissed suggestions that half the world's beaches could become extinct over the course of the 21st century. (2020-10-27)

Coastal permafrost more susceptible to climate change than previously thought
Research led by Micaela Pedrazas, who earned her masters at The University of Texas at Austin Jackson School of Geosciences working with Professor Bayani Cardenas, has found permafrost to be mostly absent throughout the shallow seafloor along a coastal field site in northeastern Alaska. That means carbon can be released from coastline sources much more easily than previously thought. (2020-10-23)

Wildfires can cause dangerous debris flows
Wildfires don't stop being dangerous after the flames go out. Even one modest rainfall after a fire can cause a deadly landslide, according to new UC Riverside research. (2020-10-22)

How rain can move mountains
Scientists have long thought that rainfall has a dramatic effect on the evolution of mountainous landscapes, but the reasons for how and why have been elusive. This seemingly logical concept has never been quantitatively demonstrated until now, thanks to a new technique that captures precisely how even the mightiest of mountain ranges -- the Himalaya -- bends to the will of raindrops. (2020-10-19)

Ground-breaking discovery finally proves rain really can move mountains
A pioneering technique which captures precisely how mountains bend to the will of raindrops has helped solve a long-standing scientific enigma. (2020-10-16)

Arctic Ocean sediments reveal permafrost thawing during past climate warming
Sea floor sediments of the Arctic Ocean can reveal how permafrost responds to climate warming. Researchers from Stockholm University has found evidence of past permafrost thawing during climate warming events at the end of the last ice age. Their findings, published in Science Advances, caution about what could happen in the near future: Arctic warming by only a few degrees Celsius may trigger massive permafrost thawing, coastal erosion, and the release of greenhouse gases. (2020-10-16)

Australian valley a 'natural laboratory' to test carbon sequestration theory
An idea to enhance natural carbon capture from olivine weathering has never been tested at scale. University of Sydney geoscientists have proposed the Tweed Valley as a laboratory and gained some interesting initial results. (2020-10-12)

Atmospheric dust levels are rising in the Great Plains
A study finds that atmospheric dust levels are rising across the Great Plains at a rate of up to 5% per year. The trend of rising dust parallels expansion of cropland and even seasonal crop cycles. And if the Great Plains becomes drier, a possibility under climate change scenarios, then all the pieces are in place for a repeat of the Dust Bowl that devastated the Midwest in the 1930s. (2020-10-12)

Heading upriver
A river's only consistent attribute is change. As the Greek philosopher Heraclitus remarked, 'No man ever steps in the same river twice.' Although this dynamic nature is often out of sight and mind, forgetting about it has led to many a historical catastrophe. (2020-09-30)

Lessons from a cooling climate
Usually, talk of carbon sequestration focuses on plants: forests storing carbon in the trunks of massive trees, algae blooming and sinking to the seabed, or perhaps peatlands locking carbon away for tens of thousands of years. (2020-09-29)

40% of O'ahu, Hawai'i beaches could be lost by mid-century
The reactive and piecemeal approach historically used to manage beaches in Hawai'i has failed to protect them. If policies are not changed, as much as 40% of all beaches on O'ahu, Hawai'i could be lost before mid-century, according to a new study by researchers in the Coastal Geology Group at the University of Hawai'i at Mānoa. (2020-09-21)

Venus' ancient layered, folded rocks point to volcanic origin
An international team of researchers has found that some of the oldest terrain on Venus, known as tesserae, have layering that seems consistent with volcanic activity. The finding could provide insights into the enigmatic planet's geological history. (2020-09-17)

Siberia's permafrost erosion has been worsening for years
The Arctic is warming faster than any other region on the planet. As a result, permafrost that is thousands of years old is now being lost to erosion. As measurements gathered on the Lena River by AWI experts show, the scale of erosion is alarming. (2020-09-16)

Dust may have controlled ancient human civilization
When early humans began to travel out of Africa and spread into Eurasia over a hundred thousand years ago, a fertile region around the eastern Mediterranean Sea called the Levant served as a critical gateway between northern Africa and Eurasia. A new study, published in Geology, shows that the existence of that oasis depended almost entirely on something we almost never think about: dust. (2020-09-15)

Global study reveals time running out for many soils - but conservation measures can help
Researchers found more than 90 per cent of the conventionally farmed soils in their global study were thinning, and 16 per cent had lifespans of less than a century. These rapidly thinning soils were found all over the world, including countries such as Australia, China, the UK, and the USA. (2020-09-14)

Worldwide loss of phosphorus due to soil erosion quantified for the first time
Phosphorus is essential for agriculture, yet this important plant nutrient is increasingly being lost from soils around the world. The primary cause is soil erosion, reports an international research team led by the University of Basel. The study in the journal Nature Communications shows which continents and regions are most strongly affected. (2020-09-11)

In the absence of otters, climate warming leads to Aleutian Reef decline
Sea otters prey on urchins and keep their population in check. When otters disappear, urchin populations explode, leading to overgrazing on kelp and a decline in kelp forests. (2020-09-10)

Land development in New Jersey continues to slow
Land development in New Jersey has slowed dramatically since the 2008 Great Recession, but it's unclear how the COVID-19 pandemic and efforts to fight societal and housing inequality will affect future trends, according to a Rutgers co-authored report. (2020-09-09)

Climate change and land use are accelerating soil erosion by water
Soil loss due to water runoff could increase greatly around the world over the next 50 years due to climate change and intensive land cultivation. This was the conclusion of an international team of researchers led by the University of Basel, which published the results from its model calculation in the scientific journal PNAS. (2020-08-24)

NASA study maps the roots of global mangrove loss
Using high-resolution data from the joint NASA-U.S. Geological Survey Landsat program, researchers have created the first map of the causes of change in global mangrove habitats between 2000 and 2016 - a valuable tool to aid conservation efforts for these vital coastline defenders. (2020-08-18)

First food-grade intermediate wheatgrass released
University of Minnesota researchers report the release of the first commercially available intermediate wheatgrass cultivar. (2020-08-06)

Early Mars was covered in ice sheets, not flowing rivers
A large number of the valley networks scarring Mars's surface were carved by water melting beneath glacial ice, not by free-flowing rivers as previously thought, according to new UBC research published today in Nature Geoscience. The findings effectively throw cold water on the dominant 'warm and wet ancient Mars' hypothesis, which postulates that rivers, rainfall and oceans once existed on the red planet. (2020-08-03)

Tiny plants crucial for sustaining dwindling water supplies: Global analysis
Miniscule plants growing on desert soils can help drylands retain water and reduce erosion, UNSW researchers have found. (2020-07-31)

Model links patterns in sediment to rain, uplift and sea level change
In a recent study, researchers from The University of Texas at Austin show that a natural record - sediments packed together at basin margins - offers scientists a powerful tool for understanding the forces that shaped our planet over millions of years, with implications on present day understanding. (2020-07-27)

Massive seagrass die-off leads to widespread erosion in a California estuary
The large-scale loss of eelgrass in a major California estuary -- Morro Bay -- may be causing widespread erosion. Over the last century, Morro Bay has been building up sediment quickly. After the die-off, however, erosion took place in more than 90% of the places where eelgrass previously grew. (2020-07-27)

Atomic force microscopy reveals nanoscale dental erosion from beverages
KAIST researchers used atomic force microscopy to quantitatively evaluate how acidic and sugary drinks affect human tooth enamel at the nanoscale level. This novel approach is useful for measuring mechanical and morphological changes that occur over time during enamel erosion induced by beverages. (2020-07-22)

Asteroid shower on the Earth-Moon system 800 million years ago revealed by lunar craters
A research team led by Osaka University investigated the formation ages of lunar craters to demonstrate that asteroids of 100 km in diameter were disrupted 800 Ma and that at least (4-5)×1016 kg of meteoroids, approximately 30-60 times more than the Chicxulub impact, must have plunged into the Earth-Moon system. (2020-07-21)

Geoscientists glean data suggesting global climate changes increase river erosion rates
Using cosmogenic nuclide burial dating methods and optically stimulated luminescence dating, geoscientists establish ages for river deposits from the Yukon River basin that span key time periods of global climate change. (2020-07-20)

New map for radioactive soil contamination in Western Europe
An international consortium of scientists has refined the map of caesium and plutonium radionuclide concentrations in soils in Switzerland and several neighbouring countries. Using an archive of European soil samples, the team led by Katrin Meusburger from the University of Basel, now at the WSL research institute, was able to trace the sources of radioactive fallout between 1960 and 2009. This study was published in Scientific Reports. (2020-07-16)

Supercomputer reveals atmospheric impact of gigantic planetary collisions
The giant impacts that dominate late stages of planet formation have a wide range of consequences for young planets and their atmospheres, according to new research. (2020-07-14)

Study reveals many great lakes state parks impacted by record-high water levels
UToledo student Eric Kostecky zeroed in on how coastal flooding and erosion in 2019 damaged park facilities, boat launches and roads and interrupted visitor experiences. (2020-07-07)

Climate change may cause extreme waves in Arctic
Extreme ocean surface waves with a devastating impact on coastal communities and infrastructure in the Arctic may become larger due to climate change, according to a new study. (2020-07-07)

Typhoon changed earthquake patterns
Intensive erosion can temporarily change the earthquake activity (seismicity) of a region significantly. This has now been shown for Taiwan by researchers from the GFZ German Research Centre for Geosciences in cooperation with international colleagues. They report on this in the journal ''Scientific Reports''. (2020-07-02)

Scientists modelled natural rock arcades
Researchers from Russia and the Czech Republic performed numerical modelling of natural rock arcades using a mathematical model that describes a succession of arches forming as a result of weathering and then turning into rock pillars without human involvement, despite their striking resemblance to architectural arcades. (2020-06-23)

Strangely ordinary strata
Researcher uncovers why most of the records left by ancient rivers preserve commonplace processes. (2020-06-16)

Which factors control the height of mountains?
Which forces and mechanisms determine the height of mountains? A group of researchers from Münster and Potsdam has now found a surprising answer: It is not erosion and weathering of rocks that determine the upper limit of mountain massifs, but rather an equilibrium of forces in the Earth's crust. This finding, published in Nature, is fundamentally new and important for the earth sciences. (2020-06-11)

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