Solar geoengineering research reveals potential aviation risks

A new study published in Geophysical Research Letters suggests that solar geoengineering techniques, specifically the injection of sulfur compounds into the stratosphere, could pose risks to aviation safety.

The research indicates that such methods could lead to increased concentrations of sulfuric acid along passenger flight paths, particularly near the Arctic and Antarctic regions. In some instances, sulfuric acid levels within aircraft cabins could exceed safe limits, presenting a specific risk to flight crews who regularly traverse these polar routes.

While the study highlights these potential side effects, the authors note that these risks should be analyzed during the early planning stages of geoengineering and do not necessarily serve as an argument against the technology itself. The proposed method aims to mimic the cooling effect of volcanic eruptions by creating aerosols that reflect sunlight away from Earth.