Ship tracks can cause cloud responses that reflect more sunlight back to space, which acts to cool the planet. This cooling has been detected in shipping lanes and it has been theorized that intentional injection of particles may be a pathway to offsetting some, or all, of the greenhouse warming to date. Current models that estimate the magnitude of global cooling from such an intentional injection scenario make the assumption that the particle injection is uniform. However, in nature, the particles take time to spread and spread at different rates depending on the meteorological conditions. How the spreading rate impacts the cooling magnitude is a major unknown, which this study attempts to address.