4 December 2018  |  Utrecht University | Alan Robock

“a comparison of different proposed stratospheric injection schemes, using airplanes, balloons, and artillery, shows that using airplanes to put sulfur gases into the stratosphere would not be expensive”

Geoengineering, also called climate engineering, has been proposed as a “solution” to global warming, involving “solar radiation management (SRM)” by injecting particles into the stratosphere, brightening clouds, or blocking sunlight with satellites between the Sun and Earth… 

Link To Full Article @ Source

… at least 27 reasons why stratospheric geoengineering may be a bad idea.  These include disruption of the Asian and African summer monsoons, reducing precipitation to the food supply for billions of people; ozone depletion; no more blue skies; reduction of solar power;