News archive

November 19, 2021

November 19, 2021Rising temperatures, invasive species and other factors have changed the composition of species in Lake Constance over the last century. Researchers are trying to understand how this could have happened and what it means for the lake.

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November 18, 2021

November 18, 2021A flood causes stress for organisms living in a watercourse. Their survival depends on factors such as whether there are refuge habitats to which they can retreat. Researchers at VAW and Eawag studied how river widening as part of restoration measures improves potential refugia availability. They showed that refugia provision and thereby the protection of biodiversity depends crucially on the supply of bedload.

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November 17, 2021

November 17, 2021The separation toilet save! has won the Design Award Switzerland 2021. This is also a milestone for Tove Larsen. She is a member of the Eawag Directorate and has been researching for almost 30 years how the nutrients in wastewater can be recovered in a useful way. In this interview on the occasion of World Toilet Day 2021, she explains how crucial our handling of wastewater is for climate change and for achieving the SDGs sustainability goals.

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November 17, 2021

November 17, 2021Together with a team of researchers and designers, Kai Udert has designed a toilet system that makes it possible to recycle nutrients from wastewater on-site. As a result, valuable nutrients can be recovered and used as fertilisers so that they no longer end up in lakes and oceans where they do a lot of damage. Now he wants to make the system ready for market together with industry partners.

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November 4, 2021

November 4, 2021Changing temperatures and varying winds over the seasons cause great fluctuations in Lake Geneva. The LéXPLORE research platform monitored the movement of water within the lake for a year to learn more about how natural factors influence the lake’s mixing. The resulting analysis now paints a fuller picture of mixing in large lakes, which had previously only been studied over shorter time periods.

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November 3, 2021

November 3, 2021Like many land plants, seagrasses live in symbiosis with nitrogen-fixing bacteria. Researchers of the Max Planck Institute for Marine Microbiology in Bremen and Eawag now show that seagrass in the Mediterranean Sea lives in symbiosis with bacteria that reside in their roots and provide the nitrogen necessary for growth. Such symbioses were previously only known from land plants. The study was published in the journal Nature.

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November 2, 2021

November 2, 2021Our lakes, rivers and streams are teeming with the smallest creatures, plants and bacteria that are barely visible to the naked eye, if at all. An underwater camera makes it possible to observe and identify the species of these creatures in real time.

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October 14, 2021

October 14, 2021Heatwaves and heavy local rainfall will increase with climate change, pushing traditional urban drainage systems to their limits. These problems can be addressed using the blue-green infrastructure approach. With careful planning, solutions of this kind can also increase biodiversity and improve the quality of urban life.

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October 5, 2021

October 5, 2021Evolution plays a crucial role in ecosystem tipping points, as shown in two recently published studies by Eawag researchers. If this influence is taken into account, ecosystem collapses can be better predicted in the future. At the same time, the studies reveal how the risk of ecosystem collapse can be reduced and the chances of recovery increased.

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August 26, 2021

August 26, 2021There has been a floating laboratory on Lake Geneva called LéXPLORE since 2019. Natacha Tofield-Pasche, limnologist at EPFL and project leader of LéXPLORE, and Damien Bouffard, researcher at Eawag and member of the LéXPLORE steering committee, tell us what is being studied there and why this research platform is unique.

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