Atmosphere
Water gets in shape for VUV absorption
Nanometre‑thin, free‑flowing liquid sheets now let Swiss Light Source users record pristine VUV absorption spectra of water, and soon any solvent.
Pollutants often originate in the air
In the CLOUD experiment at CERN, PSI researchers have measured with unprecedented precision how harmful organic air pollutants are formed and dispersed.
Taking off with sustainable kerosene
Researchers around the world are working to find and optimise new ways of producing climate-neutral aviation fuel. At PSI, together with industry, they’re exploring a promising approach.
Getting to the roots of a global health problem
Imad El Haddad analyses the chemical composition and health impacts of particulate matter at the Center for Energy and Environmental Sciences of the Paul Scherrer Institute PSI.
A complex promise
There’s more to climate-neutral aviation than just reducing emissions during flights. A PSI study analyses what is needed to achieve this long-term goal.
Sources of smog in Beijing identified
Researchers at PSI are investigating the wide range of causes underlying smog in Beijing.
Can aerosols stop global warming?
Injecting particles into the stratosphere to cool the earth? In our interview, PSI researcher Markus Ammann comments critically on the controversial subject of solar geoengineering.
How to clean up New Delhi’s smoggy air
PSI researchers are tracking down pathogenic aerosols in India.
How trees influence cloud formation
Researchers at PSI have taken a closer look at a previously disregarded factor in the formation of clouds. This could improve the accuracy of climate forecasting.
Extreme nighttime pollution in New Delhi air explained
PSI researchers find the cause of high nighttime air pollution in New Delhi