Power-to-X processes could play a key role in reducing Switzerland’s CO₂ emissions. These processes convert excess electricity generated using renewable sources into liquid or gaseous energy carriers. A group of researchers recently explored the potential of power-to-X for Switzerland.

Dust accumulating on solar panels is a big problem. But washing the panels consumes large amounts of water. MIT engineers have now developed a waterless cleaning method.

Shipping leaves a large ecological footprint: the propulsion engines are largely dependent on energy sources that produce climate-damaging CO2 when burnt. In addition to hydrogen and methanol, ammonia is also considered a more climate-friendly substitute fuel.

Viennese complexity researchers have found a method to predict the growth of cities. This could facilitate much more efficient urban development and help conserve resources.