Certain types of fungi produce proteins that could, in the future, be used to manipulate the weather via a process known as cloud seeding. In a study published in Science Advances, researchers explain how proteins secreted by members of the Mortierellaceae family can trigger ice formation at subzero temperatures — a process that could be exploited for use in weather modification. … The researchers believe that the proteins’ ability to remain efficient and active, even when concentrations are low and conditions are harsh, means they could maintain their function when aerosolized and, therefore, offer a viable method for cloud seeding. Importantly, these proteins appear to be much safer than silver iodide.