Specialized aircraft or tethered balloons designed to disperse reflective particles (sulfates, calcium carbonate) into the stratosphere. This hardware forms the backbone of solar geoengineering efforts to reflect a small percentage of sunlight back into space, potentially cooling the planet to mitigate the worst effects of global warming while longer-term decarbonization takes effect.
TRL
3/9Conceptual
Impact
5/5
Investment
4/5
Category
Hardware
