Researchers Detail 3 Major Solar Geoengineering Hurdles as Deployment Shifts Toward 20-Km Engineering
Updated
Updated · MIT Technology Review · Jun 18
Researchers Detail 3 Major Solar Geoengineering Hurdles as Deployment Shifts Toward 20-Km Engineering
2 articles · Updated · MIT Technology Review · Jun 18
Summary
Solar geoengineering research is running into practical barriers well beyond climate modeling, with major unresolved questions around stratospheric delivery, aerosol choice and oversight of any real-world deployment.
At roughly 20 kilometers, the target altitude sits far above normal commercial flight, making balloons hard to control and conventional aircraft poorly suited; proposed solutions may require radically redesigned high-altitude planes.
Sulfur-based cooling ideas also remain unsettled because sulfuric acid is sticky and heavy, pushing researchers to test precursor materials that could spread more effectively through the stratosphere.
That engineering turn has sharpened governance concerns: large-scale cooling could shift weather patterns unevenly, including South Asian monsoons, and practical research could either normalize deployment or expose enough obstacles to slow it.
As startups race to engineer the climate, who will stop a rogue actor from deploying their own private solution?
We are discovering new particles in our sky. Are we ready to risk permanently altering it based on incomplete science?
Solar Geoengineering at Scale: The Chicago Initiative, 2035 Deployment Vision, and the Urgent Need for Global Governance
Overview
The University of Chicago has launched the Climate Systems Engineering initiative, marking a new era for solar geoengineering research. This ambitious program responds to the urgent threat of climate change, which continues to exceed global targets and poses risks to security. The initiative is designed to explore novel approaches to climate intervention, aiming to develop groundbreaking strategies that could shape the Earth's future climate. With a focus on comprehensive and global collaboration, the Chicago Initiative requires substantial resources, including novel materials and advanced computing, to address the complex challenges of climate engineering.