The article discusses the potential of stratospheric sulfur injections as a geoengineering technique to mitigate global warming. It highlights the paradoxical situation where reducing sulfur emissions to improve air quality can lead to more severe climate warming due to the cooling effect of anthropogenic aerosols. The authors propose that injecting sulfur into the stratosphere could enhance Earth's albedo, thereby cooling the planet. They estimate that a continuous deployment of 1-2 Tg S per year would be necessary to counteract the warming caused by a doubling of CO₂, with a total cost of US $25-50 billion. The article also addresses potential environmental side effects, such as ozone depletion, and emphasizes the need for rigorous scientific research and ethical considerations before any such intervention is implemented. The authors conclude that while reductions in greenhouse gas emissions remain the primary priority, the possibility of stratospheric sulfur release should not be overlooked as a last resort to combat rapidly rising temperatures.The article discusses the potential of stratospheric sulfur injections as a geoengineering technique to mitigate global warming. It highlights the paradoxical situation where reducing sulfur emissions to improve air quality can lead to more severe climate warming due to the cooling effect of anthropogenic aerosols. The authors propose that injecting sulfur into the stratosphere could enhance Earth's albedo, thereby cooling the planet. They estimate that a continuous deployment of 1-2 Tg S per year would be necessary to counteract the warming caused by a doubling of CO₂, with a total cost of US $25-50 billion. The article also addresses potential environmental side effects, such as ozone depletion, and emphasizes the need for rigorous scientific research and ethical considerations before any such intervention is implemented. The authors conclude that while reductions in greenhouse gas emissions remain the primary priority, the possibility of stratospheric sulfur release should not be overlooked as a last resort to combat rapidly rising temperatures.