Environment

Their task is to monitor the condition of ecosystems, for instance in the forest floor – and crumble to dust when their work is done: bio-gliders modeled on the Java cucumber, which sails its seeds dozens of meters through the air. Empa researchers have developed these sustainable flying sensors from potato starch and wood waste.

A new analysis has found rapidly increasing emissions between 2010 and 2020 of five ozone-depleting chemicals whose production for most uses had been banned under the Montreal Protocol. The emissions of these five chlorofluorocarbons, or CFCs, occur in part from leakage during the synthesis of ozone-friendly alternatives to CFCs. Even though such by- or intermediate product emissions are allowed as an exception under the Montreal protocol, they are contrary to its wider goal – and the observed increases rise concerns.

A forest is crucial for life in streams, particularly in the catchment area and in the headwaters. This effect is especially significant in the case of sensitive species.

Thanks to a unique data set from lakes, Eawag has succeeded in determining how plankton networks respond to climate change and phosphate levels.