Abstract: This invention is a means to quell uncontrolled fires, dissipate low-pressure cells in tornado-producing clouds and make ordinance as mines, old bombs and the like inert and provide a design opportunity for lava flows. For each operation, one applies unique means of distribution of Liquid Nitrogen, either above the surface sufficiently to allow it to rain down from holes in a trough forming a pattern in the bottom of an encircling or linear trough held up with stakes or legs of a length optimum for maximum evaporation before hitting the surface, or underground with drilling means or preparatory piping or well placed air drops of Liquid Nitrogen. This produces local cooling and expansion of inert gas supplanting the general atmosphere with a nitrogen atmosphere reducing significantly the amount of oxygen available and increasing the atmospheric pressure. Both cooling and flooding with inert gas quickly quell of fires. The expansion of gas sprayed in tornado-producing clouds raises the atmospheric pressure.