What if humanity could cool Earth by reflecting sunlight back into space? Scientists are studying solar geoengineering — especially stratospheric aerosol injection — as a possible emergency response to climate change. But the risks are massive: disrupted rainfall, ozone uncertainty, geopolitical conflict, and termination shock.
This video explains the real science behind geoengineering, the Mount Pinatubo eruption, why researchers are studying solar radiation management, and why many experts are deeply worried about what could happen if humans try to control the planet’s temperature.
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