Environmental remediation is the process of cleaning up polluted or contaminated sites to restore them to a safe and healthy condition. This can involve removing hazardous materials, treating contaminated soil or water, and ensuring that the area is safe for people and wildlife. Techniques used in remediation can include bioremediation, where living organisms break down pollutants, and excavation, where contaminated soil is physically removed. The goal of environmental remediation is to reduce risks to human health and the environment. Successful remediation can lead to the revitalization of ecosystems and the return of land to productive use, benefiting both communities and nature.