.ON APRIL 2ND a contraption being similar to a snow machine on the deck of the USS Hornet, a nonexistent aircraft-carrier tied in San Francisco Bay, started generating a moisture of salted spray bits. The scientific cooperation responsible for the project, the Marine Cloud Whitening (MCB) program, led due to the Educational institution of Washington, is examining whether such aerosols might help to slow down environment change with a type of "geoengineering". What performs this phrase method-- and why is it thus disputable?