Dry ice

Flint Corp., a multinational agribusiness, has perfected weather control, altering the atmosphere to create and steer storms and reaping massive profits from the resulting crop failures and successes. When Greg Simpson, the inventor and chief programmer, goes rogue, pummeling Flint's own holdings, a hotshot young weather scientist Tess Beauchamp is sent to Antarctica to oust him and take control of the TESLA installation. But Gred won't go quietly--he's left more than one time bomb in TESLA's programming, weather disasters that will cause worldwide death and destruction.