Environment

Coral reefs are under a growing threat from climate change and human activity, making it more important than ever to understand their strengths and vulnerabilities. A team of EPFL scientists has now taken an important step in this direction with the new RECIFS open-access database on reef environments.

Wood is a trump card for the energy transition because it is very versatile and easy to store. Compared to today, up to a third more energy could be obtained from wood, not only in the form of heat, but also in the form of electricity and fuels. However, current use is not efficient enough, Swiss bioenergy researchers have shown in a new report.

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.