Science that matters

The hottest summer since records began in 1864 has caused water levels in many Swiss lakes to fall to historic lows. An Eawag analysis shows that, for 12 of the 26 lakes studied, water levels at the end of September were at their lowest since 1970. Lakes in the Swiss Plateau were particularly affected, whilst Alpine lakes benefited from glacial meltwater.

A new Eawag study provides insights into how prolonged heatwaves can affect the entire aquatic food web.

When are tenants willing to reduce their energy consumption? And what kind of investments are homeowners willing to make to save energy? Researchers from Eawag and WSL are investigating this through surveys. Their aim is to gauge public support for the design of the future energy system.

After an exceptionally early heatwave in May, western Europe recorded its hottest June on record. Immediate protection is essential, but not everyone can access cool housing, shade or flexible working conditions. A new Thermal Justice framework shows how cities can reduce heat risk without shifting its burdens to other people, places or future generations.