Newsletter October 2023 (2/2)
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ETH Domain News
October 26, 2023
 
 
 
Jürg Schweizer, head of the SLF: «We hope that the digital, automatically generated forecasts will improve the consistency of our warnings. They offer a valuable, independent second opinion.» (© ETH Board / Kellenberger Photographie)
Artificial intelligence for avalanche warning systems
Digital tools such as artificial intelligence make it possible for environmental researchers to access larger data pools and generate new scientific findings. WSL uses these tools in a wide variety of ways. For instance, they offer support by making more precise predictions about danger zones in snow and avalanche research.

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In the study, published in Nature Scientific Reports, the researchers focused on US politicians. (© iStock 2023)
A new EPFL tool shows the decline of political tone in the US
A new EPFL developed tool, Quotebank, has helped researchers provide the first large-scale data-driven evidence of a drastic shift towards a more negative political tone beginning at the start of Donald Trump’s primary campaign in June 2015.

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Sampling at a lake. (Photo: ETH Board, Daniel Kellenberger)
Underestimated diversity of toxins from cyanobacteria
The guidelines of the WHO list only four substances produced by cyanobacteria. This is a small fraction of all the metabolites that can have ecotoxicological effects.

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The water of the Ruki River in the Congo Basin is as dark as tea due to a high concentration of dissolved organic substances. (Photograph: Matti Barthel / ETH Zurich)
ETH Zurich researchers study one of the world’s darkest rivers
They set out to study the Congo Basin’s carbon cycle and in the process have become aware of one of the world’s darkest blackwater rivers: the Ruki. In the first study on this major jungle river, an international research team led by ETH Zurich explains how this blackness comes about and what it reveals about the river system’s carbon balance.

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Preparation for gassing: In order for the carbon dioxide to react with recycled granulate, it must be converted from a liquid to a gaseous state after delivery. (Image: neustark AG)
Concrete as CO2 trap – right at the plant
After their production, which emits a lot of carbon dioxide, cement-based building materials such as concrete absorb the climate gas again – a process that takes decades and can hardly be controlled. What if it could be accelerated to protect the climate? Empa researchers are collaborating with numerous partners in an elaborate project to find a solution that already takes place in the concrete production plant. Initial results are encouraging.

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