Abstract
This article brings a new perspective to the ethical debate on geoengineering through stratospheric
aerosol injection (SAI), incorporating the emerging techno-moral change scholarship into the discussion
surrounding sustainability. The techno-moral change approach can help us understand
different ways in which technology might shape society. First, it helps highlight how values and
norms are interrelated. Second, it shows that techno-moral change can happen even if the technology
is in no way realized. Through the introduction of two techno-moral vignettes, two
diametrically opposed ways in which SAI forces us to rethink sustainability and our relationship
with nature are suggested. SAI could lead to a situation of entrenchment, wherein sustainability as
a norm is undermined, or transformation where the necessity of acting according to sustainability
is highlighted.