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Who Gets to Control the Sun?

Sep 18, 2026

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The technology to cool a warming planet is moving closer to reality. The rules for who gets to use it aren’t.

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False-color satellite images of Mount Pinatubo showing the landscape after the 1991 volcanic eruption
Mount Pinatubo, Philippines, imaged in April and October 1994. The false-color satellite images show the volcanic crater and landscape altered by the 1991 eruption. Photo:NASA/JPL-Caltech

Mount Pinatubo provided the natural demonstration. Today, solar radiation modification is being studied by governments, universities and private companies.

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The science is advancing, but governance remains fragmented. Possible effects on rainfall, ozone and regional climate raise questions that cannot be answered by engineering alone.

The deeper issue is political: if a technology can influence the climate experienced by billions of people, who has the authority to deploy it?

Read the full analysis:
https://structuralsignals.com/who-gets-to-control-the-sun/

Should decisions about solar geoengineering belong to individual countries, an international body, or no one until stronger evidence and rules exist?

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