.ON APRIL 2ND a device being similar to a snowfall equipment on the deck of the USS Hornet, a nonexistent aircraft-carrier anchored in San Francisco Gulf, started producing a mist of salty aerosol fragments. The clinical partnership responsible for the job, the Marine Cloud Whitening (MCB) program, led due to the Educational institution of Washington, is investigating whether such sprays might aid to reduce weather change by means of a form of "geoengineering". What performs this condition method-- as well as why is it so debatable?