Research

Tarpaulins can be used to protect parts of glaciers from sunlight. In ski resorts, the resulting reduction in ice melt may make the measure economical at a local level. However, for financial reasons, it is not really feasible to cover large glaciers, as a study by glacier researchers from the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), ETH Zurich and the University of Fribourg has demonstrated.

Ecotoxicological tests need to be extremely accurate – which often poses challenges in research and practice. Eawag has now developed a computer model that enables even more accurate testing at high throughput; the model is simple, widely applicable and saves resources.

Even minor disruptions in infrastructure systems can have fatal consequences. Researchers and practitioners counter that risk by taking action on multiple levels. Four examples.

In a new monograph, Bruno Marchand and Pauline Schroeter document 25 years of architecture in the Canton of Vaud, from 1975 to 2000.

Power converters play an essential role in electric vehicles and solar panels, for example, but tend to lose a lot of power in the form of heat in the electricity conversion process. Thanks to a new type of transistor developed at EPFL, these converters can perform at substantially improved efficiencies, especially in high-power applications.

When it comes to debris avalanches and mudslides, there is usually very little warning. Using seismic monitoring and machine learning, researchers from ETH Zurich and WSL have developed an alarm system that can provide early warning of debris flows at Illgraben.

The risk of people being forced from their homes by flooding increases by half for each additional degree of global warming, as an international research team led by the Weather and Climate Risks Group at ETH Zurich demonstrate.

EPFL engineers are taking part in PROMETEO – an EU research project to generate hydrogen on a large scale from renewable sources, in an effort to lower industrial carbon emissions.

Researchers at the Paul Scherrer Institute PSI have studied for the first time how chemical reactions in clouds can influence the global climate. They found that isoprene, the dominant non-methane organic compound emitted into the atmosphere, can strongly contribute to the formation of organic aerosols in clouds. They published their results today in the journal Science Advances.

Motivated by the goal of reducing the polarization of opinions online, new EPFL/UNIL research indicates that this may be far more difficult than expected, even when using liked or respected celebrities as spokespeople.

Microplastic pollution is a serious problem, but blanket bans won’t solve the issue, says Denise Mitrano. We should regulate plastics more precisely to create incentives for both innovation and environmental safety.

Gudela Grote and Nadine Bienefeld talk about the impact of the uncertainty factor on people's potential in the new podcast episode.

EPFL will soon be home to a European hub for high-performance computing focused on fusion power – a potential source of clean, risk-free energy. As part of this effort, EPFL’s Swiss Plasma Center will lead a campus-wide, cross-disciplinary research team.

The flagship supercomputer of the CSCS, "Piz Daint", needs to be replaced. Installation of the successor computer, "Alps", is taking place in three phases and will be completed in 2023. CSCS Director Thomas Schulthess explains in an interview why the new computer is so special.

EPFL scientists have developed a new dye for solar cells that enables high power-conversion efficiency while being simple and cheap to make. The dye also works exceptionally well under low-light conditions, which is key for self- and low-powered devices.