The plan sounds like science fiction — but could be fact within a decade; every day more than 800 giant aircraft would lift millions of tonnes of chalk dust to a height of 12 miles above the Earth's surface and then sprinkle the lot high around the stratosphere.
https://www.dailymail.co.uk/sciencet...l-warming.html
This is not the crackpot plan of a garden-shed inventor. The project is being funded by billionaire and Microsoft founder Bill Gates and pioneered by scientists at Harvard University.
Stratospheric Controlled Perturbation Experiment (SCoPEx) is currently being delayed over fears that it could backfire and cause ill-effects such as hurricanes and droughts, as man attempts to interfere with mother nature.