Sustainability

More heat pumps in buildings and more electric cars on the roads will lead to an increase in electricity consumption in Switzerland in the future. To meet this increasing demand, we rely on electricity imports, which, however, often have a large carbon footprint, as they come from gas or coal-fired power plants, for example. In a new study, researchers from Empa and the University of Geneva sketch out various scenarios to show how Switzerland can reduce these CO₂-emitting electricity imports by diversifying the expansion of renewables.

A team of scientists from EPFL and Switzerland’s WSL research institute has studied the conversion of savannas into oil palm plantations as a deforestation-free way of growing these plantations. What’s more, if improved management practices are adopted at the plantation scale, then the net carbon balance could be enhanced and a great leap could be made towards reducing the environmental impact of palm oil.

EPFL scientists have observed how catalysts behave at the particle level during water electrolysis. Catalysts play a crucial role in this reaction, in which water splits into hydrogen and oxygen. By shedding light on the underlying mechanism of the functional role of catalysts during the reaction, the scientists have made an important discovery for the design of renewable-energy storage systems.

Without stronger climate action, the five biggest emitters will double the number of countries regularly experiencing extreme hot years by 2030.