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2025-09-11 08:06:13

A Planetary Cooling Hose
Roderick A. Hyde
https://arxiv.org/abs/2509.07985 https://arxiv.org/pdf/2509.07985

A Planetary Cooling Hose
Geoengineering may offer a way to pause global warming, providing the time for more permanent solutions to become effective. Erection of a high-altitude hose offers an affordable and near-term approach to deliver sulfur-bearing fluids to the stratosphere in order to perform geoengineering via solar radiation management. We discuss the design of a hose extending to an altitude of 20 km and sized to deliver 100 ktons of sulfur per year. The sulfur, in the form of H$_2$S, is pushed up the hose by …