“In particular, we examine problems sulfate aerosol geoengineering (SAG) faces in meeting the requirements of distributive, intergenerational, and procedural justice. We argue that SAG faces obstacles to meeting the requirements of all three considered kinds of justice, because its impacts can harm some persons and communities much more than others; it poses serious risks to future generations; and SAG is especially prone to unilateral implementation.
First, SAG could cause drought and famine, so SAG has the potential to violate the requirements of distributive justice. Second, SAG could be abruptly discontinued in a way that could put future persons at risk of suffering the harms of rapid climate change, so SAG has the potential to violate the requirements of intergenerational justice. Third, SAG could be unilateral, which would violate the requirements of procedural justice.”