Called the Stratospheric Controlled Perturbation Experiment (SCoPEx), the project is a scientific experiment designed to help us better grasp the possibility of applying stratospheric aerosols in the field of solar geoengineering.
The experiment involves improving the fidelity of simulations (computer models) of solar geoengineering to generate answers to vital questions surrounding the notion. To fully understand both the risks and benefits of solar geoengineering, scientists will rely on these simulations — but there is an inherent risk to relying on simulations: namely, current technology tends to predict an overly optimistic outcome.
This is why SCoPEx will gather quantitative measurements of aerosol microphysics — along with atmospheric chemistry, which are two points of high uncertainty in present-day simulations.
The experiment involves flying a balloon above Sweden to see if it can block sunlight on its way to Earth — with hopes of creating a new way of fighting global climate change.