The Scorched Earth Device is a weapon that releases a deadly replicating toxin that rapidly destroys cells, which within a few hours to a week, will invariably wipe out all life on the planet. And yes, all life. As long as there is a single bit of biological matter in your body, it will be eliminated. The container for the toxin is a cylindrical can about a meter wide and 3 meters tall. The toxin breaks down after about a year.