Some of the More Radical Proposals to Address and Mitigate

question 36

Essay

Some of the more radical proposals to address and mitigate climate change involve geoengineering, which involves deliberately modifying Earth's climate. Evaluate how the actions listed would affect the global climate and global biogeochemical cycles by answering the questions that follow.
Option 1: Plant more trees.
Option 2: Build one or more giant reflective mirrors and send them into Earth's orbit.
Option 3: Fertilize ocean water with iron.
Option 4: Spray sulfuric acid as aerosol into the stratosphere.
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How would option 4 (spray sulfuric acid into the stratosphere) affect global climate? What effect would it have on greenhouse gas levels in the atmosphere? What effect would option 4 have on the sulfur cycle? What is a potential negative effect of this option?