in the Laboratory of Environmental Chemistry (LUC)
Consideration in future climate models important.
Margit Schwikowski is head of the Laboratory for Environmental Chemistry at PSI. In an interview, she explains what aerosols have to do with climate change.
During its expedition to the Monte Rosa massif, the international Ice Memory team extracted two ice cores over 80 meters long from Colle Gnifetti, the oldest ice in the Alps.
The next mission to preserve the climate heritage of the Pennine Alps has begun: For the Ice Memory Project, researchers set off for Monte Rosa’s Colle Gnifetti.
A precise look into the finest particles in the air shows how compounds harmful to human health are formed.
An international expedition with the participation of the Paul Scherrer Institute PSI discovers advanced glacial melting at an elevation of more than 4,000 metres on the Grand Combin in Valais. In the Alps, it may almost be too late for the Ice Memory project, which aims to save ice cores as a climate archive for future generations of researchers.
Scientists have just nucleated ice in an X-ray microscope for the first time and they created chemical maps of those responsible.
In the first half of the 19th century, a series of large volcanic eruptions in the tropics led to a temporary global cooling of Earth's climate. That Alpine glaciers grew and subsequently receded again during the final phase of the so-called Little Ice Age was due to a natural process. This has now been proven by PSI researchers on the basis of ice cores.
PSI researchers have developed an experimental chamber in which they can recreate atmospheric processes and probe them with unprecedented precision, using X-ray light from the Swiss Light Source SLS. In the initial experiments, they have studied the production of bromine, which plays an essential role in the decomposition of ozone in the lower layers of the atmosphere. In the future, the new experiment chamber will also be available for use by researchers from other scientific fields.