Results 21 - 40 of 914.
Paleontology - Environment - 21.12.2023
A long-known deposit yields new secrets
Paleontologists lack the fossils they need to trace the evolutionary history of the Amazon region, a region characterized by unparalleled biodiversity. By exploiting data from a site known for over a century, Juan Carrillo, a researcher at the University of Fribourg, and his colleagues from other institutions, have made exceptional discoveries that shed new light on this little-known past .
Environment - Earth Sciences - 20.12.2023
Permafrost: a ticking time bomb beneath our feet
Nearly a quarter of the Earth's land surface is permanently frozen. These areas, known as permafrost, are found in northern polar regions and at high altitudes.
Environment - Astronomy / Space - 14.12.2023
Accurate snow measurement thanks to AI and satellites
Snow measurement has never been so fast and accurate: researchers have developed an artificial intelligence capable of determining snow depth across Switzerland using satellite images. How much snow is there up in the mountains, and where exactly is it? The answer is of just as much interest to the winter tourism industry and operators of hydropower plants as it is to winter sport enthusiasts looking to gauge the risk of avalanches.
Environment - Earth Sciences - 12.12.2023
Heavy metals in the rivers of Greenland
Field studies by Eawag researcher David Janssen in southern Greenland show that the heavy metals in the rivers are largely of natural origin, and that the influence of mining and agriculture is negligible, at least during the period observed. The rivers in Greenland can transport unusually high concentrations of heavy metals, including copper, zinc, gold, silver, platinum, lead and mercury.
Materials Science - Environment - 01.12.2023
Replicating the structure of bird feathers
Modelled on nature: researchers have developed a new material that replicates the structure responsible for the blue feathers of the North American song bird, among many other birds. It also has other striking advantages. The eastern bluebird is a special bird. The blue of its feathers is unique. However, this colour is not based on pigments but on the special structure of the feather.
Environment - 30.11.2023
Treat wastewater in an environmentally sustainable way with worms
This research project explores vermifiltration as an alternative method for wastewater treatment. The aim is to fill knowledge gaps about greenhouse gas emissions, scaling-up, long-term operation, micropollutant abatement and treated wastewater reuse options. Vermifiltration is a non-sewered sanitation technology that uses a symbiotic relationship between Eisenia Fetida earthworms and microorganisms to treat wastewater.
Agronomy / Food Science - Environment - 30.11.2023
Inoculation Against Diseased Fields
Plant Biology Farmland often harbors a multitude of pathogens which attack plants and reduce yields. A Swiss research team has now shown that inoculating the soil with mycorrhizal fungi can help maintain or even improve yields without the use of additional fertilizers or pesticides. In a large-scale field trial, plant yield increased by up to 40 percent.
Environment - Psychology - 30.11.2023
Climate: why disinformation is so persistent
A team from the University of Geneva has tested six psychological interventions to combat climate misinformation. It shows how difficult it is to combat these messages, which are resistant to scientific information. Melting of glaciers, rising sea levels, extreme heat waves: the consequences of climate change are more visible than ever, and the scientific community has confirmed that humans are responsible.
Environment - Social Sciences - 29.11.2023
Small apartments have potential in Switzerland
There is a high level of interest in small forms of housing among the Swiss population. However, there are clear differences between those who already live or have lived in such a form of housing and those who can imagine doing so in principle. These are the findings of a study conducted by Lucerne University of Applied Sciences and Arts.
Environment - 29.11.2023
Experts revive ancient techniques to make concrete more sustainable
A team of experts from EPFL, ETH Zurich and a Geneva-based architecture firm has developed a new type of non-reinforced concrete made from stone offcuts. Their method, which reduces the use of carbon-intensive cement-based binders, draws on ancient techniques uncovered in historical archives. Some walls could easily be built without reinforced concrete, a material that accounts for a large share of the construction industry's carbon footprint.
Environment - Life Sciences - 28.11.2023
Protection of Highly Threatened Sharks and Rays Inadequate
Paleontology Sharks, rays and skates are the ocean's most threatened vertebrate group. Research led by the University of Zurich into their functional diversity has now revealed previously overlooked, critical conservation priorities, thereby underscoring the urgent need for targeted action to safeguard the threatened species.
Life Sciences - Environment - 24.11.2023
How plants determine where light comes from
With no visual organs, how can a plant know where light is coming from? In an original study combining biological and engineering expertise, the team led by Prof. Christian Fankhauser at the University of Lausanne, in collaboration with colleagues at EPFL, has deciphered a novel mechanism using the interface between air and water to generate a gradient of light "visible" to the plant.
Environment - Life Sciences - 23.11.2023
Scientists explore hidden dynamics in peat under mosses and shrubs
Global warming is causing extensive changes to peatland vegetation in Europe and Western Siberia, with consequences for soil composition and the peatlands' ability to sequester carbon. An EPFL-led study has examined the mechanisms behind these complex processes. Peatlands are significant carbon sinks, meaning they're potential time bombs when it comes to greenhouse gas emissions.
Environment - Social Sciences - 22.11.2023
Durability: young people use their phones longer
Young Swiss use their smartphones for almost three years before replacing them. That's almost a year longer than in 2016, according to the latest JAMESfocus report from ZHAW and Swisscom. While technical features and price remain central for young people when buying a cell phone, sustainability criteria are also gaining in importance .
Environment - Innovation - 21.11.2023
New technology can collect CO2 from a truck's exhaust pipe
EPFL spin-off Qaptis has developed a system that can cut freight trucks' carbon emissions by up to 90%.
Civil Engineering - Environment - 20.11.2023
The future of construction with more sustainable cement
A new material developed at EPFL could change how we make cement forever - and cut 500 million tons of emissions by 2030.
Environment - Life Sciences - 16.11.2023
Quagga mussel: prognosis for affected lakes
A comparison of three Swiss lakes with the Great Lakes of North America show for the first time that the invasive quagga mussel is spreading on both continents with a similar dynamic.
Environment - 15.11.2023
Natural coasts protect against tropical cyclones
People living on the in low-lying coastal areas will be at even greater risk from cyclones in the future. Natural ecosystems offer protection, but this protection has decreased in recent years and is expected to continue to decline. This is a finding of a model study by an international team of researchers led by ETH Zurich.
Environment - 14.11.2023
The quagga mussel threatens to upset Lake Geneva ecosystem
A team from UNIGE, Eawag and the University of Konstanz has compared the spread of this invasive species in Switzerland and the United States. The result is a better understanding of the threats facing Lake Geneva. Invasive species are one of the main causes of human induced changes to ecosystems. The quagga mussel ( Dreissena rostriformis ) is one of them.
Environment - Social Sciences - 13.11.2023
Diverse forests hold huge carbon potential, as long as we cut emissions
New study estimates that natural forest recovery could capture approximately 226 Gigatonnes (Gt) of carbon, but only if we also reduce greenhouse gas emissions. Achieving these results requires community-driven efforts to conserve and restore biodiversity. Research results published in the journal, external page Nature call_made , show that realistic global forest carbon potential is approximately 226 Gigatonnes (Gt) of carbon.