Fertilizers can be beneficial for the environment when used properly, as they can help to improve soil quality and increase crop yields. However, if not used carefully, fertilizers can also have negative environmental impacts. Excess fertilizers can run off into bodies of water, where they can cause algal blooms and other forms of pollution. Fertilizers can also release greenhouse gases, such as nitrous oxide, into the atmosphere. In general, it is important to use fertilizers responsibly and in moderation to avoid negative environmental impacts.