Fun science fact: In the case of silver iodide cloud seeding, it actually is a causal relationship. The silver iodide acts as a catalyst for the water in humid air and in other less visible clouds that contact the contrails. It causes the water to form droplets around the silver iodide particles and freeze, gaining the necessary mass to fall as rain or snow.
Fun science fact: In the case of silver iodide cloud seeding, it actually is a causal relationship. The silver iodide acts as a catalyst for the water in humid air and in other less visible clouds that contact the contrails. It causes the water to form droplets around the silver iodide particles and freeze, gaining the necessary mass to fall as rain or snow.