Scientists Inject Salt Aerosol Into Clouds in Controversial Climate Experiment

Known as Marine Cloud Brightening:
"Scientific studies indicate that aerosols of the right size and concentration could significantly increase the reflectivity of specific types of clouds. This phenomenon is visible in satellite images of clouds brightened by ship emissions (known as “ship tracks”). Observations of ship tracks led scientists to the idea of using particles of salt from sea water, a natural source of cloud-forming aerosol particles, to brighten clouds over parts of the ocean in order to reduce climate warming."

The International initiative referred to in the article:
https://atmos.uw.edu/faculty-and-research/marine-cloud-brightening-program/