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Categories: Geoscience: Geology, Geoscience: Severe Weather
Published Devastating cost of future coastal flooding for many developing nations predicted in new study


New global modelling predicts the devastating socioeconomic impacts of future extreme coastal flooding for developing nations caused by climate change, with Asia, West Africa and Egypt facing severe costs in the coming decades.
Published More frequent atmospheric rivers hinder seasonal recovery of Arctic sea ice


The Arctic is rapidly losing sea ice, even during winter months when temperatures are below freezing and ice should be recovering from the summer melt. A new study found powerful storms called atmospheric rivers are increasingly reaching the Arctic in winter, slowing sea ice recovery and accounting for a third of all winter sea ice decline, according to a team led by Penn State scientists.
Published Scientists detect molten rock layer hidden under Earth's tectonic plates


Scientists have discovered a new layer of partly molten rock under the Earth's crust that might help settle a long-standing debate about how tectonic plates move. The molten layer is located about 100 miles from the surface and is part of the asthenosphere, which is important for plate tectonics because it forms a relatively soft boundary that lets tectonic plates move through the mantle. The researchers found, however that the melt does not appear to notably influence the flow of mantle rocks. Instead, they say, the discovery confirms that the convection of heat and rock in the mantle are the prevailing influence on the motion of the plates.
Published Pacific Northwest heat dome tree damage more about temperature than drought, scientists say



Widespread tree scorch in the Pacific Northwest that became visible shortly after multiple days of record-setting, triple-digit temperatures in June 2021 was more attributable to heat than to drought conditions, researchers say.
Published Study reveals new clues about how 'Earth's thermostat' controls climate


Rocks, rain and carbon dioxide help control Earth's climate over thousands of years -- like a thermostat -- through a process called weathering. A new study may improve our understanding of how this thermostat responds as temperatures change.
Published Mapping Mexico's dengue fever hotspots


Scientists have analyzed data from Mexico's Ministry of Health to identify dengue fever hotspots. Working with epidemiologists at the University of North Texas and Universidad Autónoma de Nuevo León, the team calculated environmental and socioeconomic risk factors and mapped areas where severe outbreaks occur.
Published Wildfires are increasingly burning California's snowy landscapes and colliding with winter droughts to shrink California's snowpack


A research team examined what happens to mountain snowpacks when sunny, midwinter dry spells occur in forests impacted by severe wildfire.
Published Far-off storms fuel sneaker waves along Pacific Northwest coast, new research suggests


Sneaker waves are likely fueled by a specific type of wave condition generated by far-off storms and paired with just the right conditions closer to shore, a new study has found.
Published Understanding plants can boost wildland-fire modeling in uncertain future


A new conceptual framework for incorporating the way plants use carbon and water, or plant dynamics, into fine-scale computer models of wildland fire provides a critical first step toward improved global fire forecasting.
Published Monitoring an 'anti-greenhouse' gas: Dimethyl sulfide in Arctic air


Data stored in ice cores dating back 55 years bring new insight into atmospheric levels of a molecule that can significantly affect weather and climate.
Published Honey bee colony loss in the U.S. linked to mites, extreme weather, pesticides


Honey bee colony loss across the United States over the last five years is primarily related to the presence of parasitic mites, nearby pesticides, and extreme weather events as well as challenges with overwintering, according to a new study. The study took advantage of novel statistical methods and is among the first to concurrently consider a variety of potential honey bee stressors at a national scale.
Published Looking back at the Tonga eruption


A 'back-projection' technique reveals new details of the volcanic eruption in Tonga that literally shook the world.
Published Mercury helps to detail Earth's most massive extinction event


Scientists are working to understand the cause and how the events of the LPME unfolded by focusing on mercury from Siberian volcanoes that ended up in sediments in Australia and South Africa.
Published Meteorites reveal likely origin of Earth's volatile chemicals


By analyzing meteorites, researchers have uncovered the likely far-flung origin of Earth's volatile chemicals, some of which form the building blocks of life.
Published Outlook for the blue economy


A handful of hyper-productive fisheries provide sustenance to a billion people and employ tens of millions. These fisheries occur on the eastern edges of the world's oceans -- off the West Coast of the U.S., the Canary Islands, Peru, Chile, and Benguela. There, a process called upwelling brings cold water and nutrients to the surface, which in turn supports large numbers of larger sea creatures that humans depend on for sustenance. A new project is seeking to understand how changes to the climate and oceans will impact fisheries in the U.S. and around the world.
Published Satellite data shows sustained severe drought in Europe


Europe lacks groundwater -- a lot of groundwater. The continent has already been suffering from a severe drought since 2018. This is confirmed by satellite data.
Published Immense diversity and interdependence in high temp deep-sea microorganism communities


A new study finds that microorganisms live in richly diverse and interdependent communities in high-temperature geothermal environments in the deep sea. By constructing genomes of 3,635 Bacteria and Archaea from 40 different rock communities, researchers discovered at least 500 new genera and have evidence for two new phyla. Samples from the deep-sea Brothers volcano were especially enriched with different kinds of microorganisms, many endemic to the volcano. The genomic data from this study also showed that many of these organisms depend on one another for survival. Some microorganisms cannot metabolize all of the nutrients they need to survive so they rely on nutrients created by other species in a process known as a 'metabolic handoff.'
Published Asteroid findings from specks of space dust could save the planet


New research into the durability and age of an ancient asteroid made of rocky rubble and dust, revealed significant findings that could contribute to potentially saving the planet if one ever hurtled toward Earth.
Published The key to weathering rapid sea-level rise may lie in a Massachusetts salt marsh


Researchers recently announced that salt marshes, critical habitats threatened by rapid sea-level rise, may in fact thrive despite higher water levels. The key factor that determines whether salt marshes collapse or flourish involves not water, but sediment.
Published Rare opportunity to study short-lived volcanic island reveals sulfur-metabolizing microbes


On the short-lived island of Hunga Tonga Hunga Ha'apai, researchers discovered a unique microbial community that metabolizes sulfur and atmospheric gases, similar to organisms found in deep sea vents or hot springs.