2019  Should we fertilize oceans or seed clouds? No one knows


bateauGather scientific evidence on the feasibility and risks of marine geoengineering to guide regulation of research. Adaptive forms of governance that centre on responsible research and innovation9 have been applied to other emerging technologies, such as synthetic biology and nanotechnology. A similar approach for geoengineering will enable scientists to put forward a scientifically sound subset of approaches that can be scrutinized through legal, socio-economic and geopolitical lenses over the next few years.