Science that matters

Insects and spiders are superfoods: rich in essential fatty acids and therefore an important food supply for birds, fish, reptiles, amphibians and small mammals.

With climate change, hot and dry summers are becoming more frequent, causing water shortages in some regions of Switzerland. Reusing treated wastewater could help to solve this problem. This has been demonstrated by an Eawag team on behalf of the FOEN and some cantons. The researchers also explain what still needs to be done to put the option into practice.

A new catalogue and database of over 17,000 European river catchments facilitates the work of researchers in the field of hydrology. The EStreams project, carried out at Eawag, provides hydrological and meteorological data as well as information on the landscape of the river regions. The records go back up to 120 years.

Many fish species migrate back and forth between habitats in the course of their lives. However, man-made obstacles make life difficult for these species. Cold-loving fish are also affected by climate change, especially if access to cold-water zones is made more difficult. Renaturalisation can solve this problem. An Eawag project will now help to identify obstacles and remaining cold-water zones so that restoration measures can be planned in a more targeted manner.