.ON APRIL 2ND a contraption being similar to a snowfall device on the deck of the USS Hornet, an invalid aircraft-carrier moored in San Francisco Gulf, started generating a moisture of salted aerosol particles. The clinical collaboration behind the task, the Marine Cloud Brightening (MCB) program, led due to the University of Washington, is looking into whether such aerosols might aid to slow down weather adjustment via a kind of "geoengineering". What performs this condition way-- as well as why is it thus disputable?