Overview

• Harvard University has officially ceased the Stratospheric Controlled Perturbation Experiment (SCoPEx) after a decade of planning and controversy.
• The decision follows intense scrutiny from environmentalists, indigenous groups, and climate activists, including a halted test flight in Sweden due to opposition.
• SCoPEx aimed to explore solar geoengineering by releasing particles into the stratosphere to reflect sunlight, but faced criticism for potential unintended climate effects.
• The project's advisory committee released a final report outlining governance recommendations for future research, emphasizing community engagement.
• Despite the project's end, Harvard will continue solar geoengineering research under the Solar Geoengineering Research Program, focusing on science, governance, and social implications.