Remediation is the process of restoring or cleaning up contaminated sites to reduce or eliminate environmental and health risks. This can include cleaning up pollution from industrial activities, mining operations, agriculture, or other sources. Remediation strategies can include physical removal of contaminants, in situ treatment techniques, and the use of biological or chemical processes to break down pollutants. The goal of remediation is to protect human health and the environment, restore the natural ecosystem, and minimize long-term effects of contamination.