Dr. David Keith believes in intentionally releasing sulfur dioxide into the stratosphere to lower global temperatures and blunt global warming. This controversial idea of stratospheric solar geoengineering is met with hope and fear. While proponents see it as a potential solution to reduce temperatures before transitioning away from fossil fuels, opponents fear unpredictable calamities, environmental disruptions, and health risks associated with the technology.
Key Points
Effects of climate change are intensifying
Interest in geoengineering is growing
Concerns about unintended consequences and environmental impacts
Dr. David Keith advocates for solar geoengineering as a potential solution
Pros
Potential to reduce global temperatures
Relatively cheap and fast approach compared to transitioning away from fossil fuels
Could prevent millions of heat-related deaths
Cons
Unpredictable calamities and environmental disruptions
Health risks from sulfur dioxide
Possibility of distracting from transitioning away from fossil fuels