News 2019


Earth Sciences

Results 1 - 20 of 155.
1 2 3 4 5 8 Next »

Earth Sciences - 20.12.2019
Why is the earth shaking in Ischia?
Why is the earth shaking in Ischia?
Italian and Geneva researchers unveil the cause of the often fatal earthquakes on the volcanic island of Ischia (Italy). Volcanic islands, such as Ischia in Italy, are often the scene of major natural disasters caused by earthquakes. But why is the earth shaking in Ischia? Researchers from the University of Geneva (UNIGE), Switzerland, the University of Roma Tre and the National Institute of Geophysics and Volcanology (INGV; Italy) have highlighted the phenomenon responsible for the periodic earthquakes that have struck the island of Ischia.

Paleontology - Earth Sciences - 19.12.2019
Modern humans and Homo erectus did not co-exist in Java
Modern humans and Homo erectus did not co-exist in Java
Ninety years after Dutch geologists excavated human fossils in central Java, scientists finally have pinpointed the fossils' age at around 120,000 years. In a study reported today in Nature , The University of Queensland's Associate Professor Michael Westaway and Professor Jian-xin Zhao helped to establish the age and a new chronology for "a critical site for understanding the later stages of human evolution".

Earth Sciences - Physics - 18.12.2019
Submarine Cables to Offshore Wind Farms Transformed into a Seismic Network
An international team of geoscientists led by Caltech has used fiber optic communications cables stationed at the bottom of the North Sea as a giant seismic network, tracking both earthquakes and ocean waves. The project was, in part, a proof of concept. Oceans cover two-thirds of the earth's surface, but placing permanent seismometers under the sea is prohibitively expensive.

Earth Sciences - 18.12.2019
Submarine cables: billions of potential seismic sensors!
Submarine cables: billions of potential seismic sensors!
Scientists have for the first time shown that it is possible to detect the propagation of seismic waves on the seafloor using submarine telecommunications cables. According to their observations, this existing infrastructure could be used to detect earthquakes, as well as swell and underwater noise. The results are published on December 18, 2019, by researchers from the CNRS, OCA, IRD and Université Côte d'Azur working together in the Géoazur laboratory, in collaboration with the company Fébus Optics and the Centre de Physique des Particules de Marseille (CNRS/Aix-Marseille Université) 1.

Astronomy / Space - Earth Sciences - 18.12.2019
Fact or fiction? The science of "Star Wars"
How did those planets form? Could they exist in our universe? Could Star Wars really happen? Stanford Earth experts on planetary formation, processes and habitability discuss the science behind the fictional saga. Space discoveries are in the news on a nearly weekly basis - but they may not leave an impression as impactful as the legend of Star Wars.

Environment - Earth Sciences - 12.12.2019
Ecotoxicological effects of pesticides in stream sediments
Ecotoxicological effects of pesticides in stream sediments
In small watercourses in Swiss agricultural catchments, pesticides pose an ecotoxicological risk. This was demonstrated by studies carried out in 2015 and 2017 under the National Surface Water Quality Monitoring Programme (NAWA SPEZ), where pesticide concentrations exceeded environmental quality standards for most of the study period.

Environment - Earth Sciences - 10.12.2019
Scientific advances needed to track progress of methane levels in the atmosphere
Understanding what influences the amount of methane in the atmosphere has been identified by the American Geophysical Union to be one of the foremost challenges in the earth sciences in the coming decades because of methane's hugely important role in meeting climate warming targets. Methane is the second most important human-made greenhouse gas and is rising in the atmosphere more rapidly than predicted for reasons that are not well-understood.

Environment - Earth Sciences - 06.12.2019
The Arctic’s changing landscape: Impact on plants, animals, livelihoods and global temperatures
With 2019 on track to be one of the warmest years on record, a major new study reveals the impact of warming temperatures on Arctic vegetation, animal species, and human communities who rely on the stability of the Arctic food chain to survive. The study, published today in Science Advances by an international team of researchers, reports that the Arctic has warmed by 0.

Earth Sciences - Materials Science - 06.12.2019
Gaining insight into the energy balance of earthquakes
Gaining insight into the energy balance of earthquakes
Researchers at EPFL's Computational Solid Mechanics Laboratory and the Weizmann Institute of Science have modeled the onset of slip between two bodies in frictional contact. Their work, a major step forward in the study of frictional rupture, could give us a better understanding of earthquakes - including how far and fast they travel.

Environment - Earth Sciences - 05.12.2019
Carbon emissions from volcanic rocks can create global warming - study
Greenhouse gas emissions released directly from the movement of volcanic rocks are capable of creating massive global warming effects - a discovery which could transform the way scientists predict climate change, a new study reveals. Scientists' calculations based on how carbon-based greenhouse gas levels link to movements of magma just below earth's surface suggest that such geological change has caused the largest temporary global warming of the past 65 million years.

Environment - Earth Sciences - 04.12.2019
Better wildfire and smoke predictions with new vegetation database
This animation shows the average amount of wildfire fuels across the country for five different types of vegetation: trees, coarse wood debris, duff (decomposing organic materials on the ground), herbaceous live vegetation and shrubs. Michael Billmire/Michigan Technological University It's hard to find a place in the U.S. that isn't impacted by wildfires and smoke.

Earth Sciences - Environment - 04.12.2019
Australia at its most stripped back
New research from The Australian National University (ANU) and Geoscience Australia could provide a much clearer picture of the Australian landscape, and how to better manage it under a changing climate. The study, published , shows the Australian continent at its 'barest' - or least vegetated. Dr Dale Roberts designed a new mathematical algorithm that accurately estimates the earth's reflected light at every location from satellite imagery.

Environment - Earth Sciences - 04.12.2019
Reef copes with rapid sea-level rise
Reef copes with rapid sea-level rise
PhD student Kelsey Sanborn has shown how the reef has dealt with environmental stresses in the recent past in order to understand how it might react to climate change in the future. A new study into the recent history of the Great Barrier Reef has shown how it responds to rapid sea-level rise and other environmental stresses.

Astronomy / Space - Earth Sciences - 03.12.2019
Analysis: We may have solved the mystery of how landslides form on Mars
Mars's huge landslides can move at speeds of up to 360 kilometres an hour for up to tens of kilometres. PhD candidate Giulia Magnarini and Dr Tom Mitchell (UCL Earth Sciences) write about how these landslides may have formed. Some landslides on Mars seem to defy an important law of physics. "Long, runout landslides" are formed by huge volumes of rock and soil moving downslope, largely due to the force of gravity.

Earth Sciences - 02.12.2019
Underwater Telecom Cables Make Superb Seismic Network
Underwater Telecom Cables Make Superb Seismic Network
Adapted from a news release by UC Berkeley : Fiber-optic cables that constitute a global undersea telecommunications network could one day help scientists study offshore earthquakes and the geologic structures hidden deep beneath the ocean surface. In a recent paper in the journal Science , researchers from UC Berkeley, Lawrence Berkeley National Laboratory (Berkeley Lab), Monterey Bay Aquarium Research Institute (MBARI) , and Rice University describe an experiment that turned 20 kilometers of undersea fiber-optic cable into the equivalent of 10,000 seismic stations along the ocean floor.

Earth Sciences - Physics - 28.11.2019
Underwater telecom cables make superb seismic network
The oceans are criss-crossed by telecommunications cables, as illustrated by this graphic predicting the fiber-optic cables that will be operational by 2021, many of them (yellow) owned by private companies like Google and Microsoft. These cables could serve a dual purpose as seismic stations to monitor earthquakes and fault systems over the 70% of Earth covered by water.

Earth Sciences - Chemistry - 27.11.2019
Barbequed clams on the menu for ancient Puerto Ricans
Scientists have reconstructed the cooking techniques of the early inhabitants of Puerto Rico by analysing the remains of clams. Led by Philip Staudigel, who conducted the analysis as a graduate student at the University of Miami Rosenstiel School and is now a postdoctoral researcher at Cardiff University, the team has used new chemical analysis techniques to identify the exact cooking temperatures at which clams were cooked over 2500 years ago.

Life Sciences - Earth Sciences - 25.11.2019
Changes in oxygen concentrations in our ocean can disrupt fundamental biological cycles
The nitrogen cycle is essential to all forms of life on Earth - nitrogen is a basic building block of DNA. The marine nitrogen cycle is strongly controlled by biology and small changes in the marine nitrogen cycle have major implications on life. It is thought that the marine nitrogen cycle has stayed relatively stable over geological time due to a range of different feedback mechanisms.

Environment - Earth Sciences - 25.11.2019
Human migration out of Africa may have followed monsoons in the Middle East
Last year, scientists announced that a human jawbone and prehistoric tools found in 2002 in Misliya Cave, on the western edge of Israel, were between 177,000 and 194,000 years old. The finding suggested that modern humans, who originated in Africa, began migrating out of the continent at least 40,000 years earlier than scientists previously thought.

Earth Sciences - 25.11.2019
What are lost continents and why are we discovering so many?
What are lost continents and why are we discovering so many?
Led by ARC Future Fellow Dr Maria Seton from the School of Geosciences, a multi-institutional team is finding surprising new information about the nature of continents, from Zealandia and beyond. For most people, continents are Earth's seven main large landmasses. But geoscientists have a different take on this.
1 2 3 4 5 8 Next »