Nurses are becoming increasingly involved in environmental health issues. In this article, some of the key environmental health risks found inside schools have been presented, including pesticides, mercury, asthma triggers, formaldehyde, and carbon monoxide. Children's special vulnerabilities to environmental exposures were explored, especially as they pertain to the school-aged children. Nursing actions to reduce environmental exposures in schools were outlined, including directions for creating an environmentally-healthy nursing suite. Additionally, guidance was provided regarding collective action and advocacy through the creation of and participation in environmental health and safety committees.