‘Geoengineering’ has come to refer to massive technological interventions into fundamental earth systems on a planetary scale, often with the aim of counteracting human-induced climate change. Despite a burgeoning literature, some ethical issues surrounding geoengineering remain under-analyzed, barely identified, or in effect ignored. In this paper, we explore one such issue, the threat of generationally parochial geoengineering (GPG) and identify some early warning signs in the current discourse, focusing on stratospheric sulfate injection, a form of solar radiation management. Our emphasis is on motivating the claim that generationally parochial geoengineering is a threat that should be taken seriously at all levels of work on geoengineering, including research, development, and deployment. We also propose some initial guidelines and recommendations for future research and governance.
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