Although environmental health has been central to nursing practice since the work of Florence Nightingale, the inclusion of environmental health concepts into nursing education has, for the most part, been confined to public health and occupational health nursing. The 1995 Institute of Medicine report, Nursing, Health, and the Environment, clearly stated that environmental health was an important aspect of nursing practice, but nurses were not adequately educated to address such in their practice. This article highlights the initiatives by nurse educators, faculty development programs, federal agencies, nonprofit organizations, and private foundations to educate and engage nurses in environmental health since 1995, with a focus on the Alliance of Nurses for Healthy Environments. The historical summary was developed using professional literature, documents, personal interviews, and survey data. Nurses responded to the mandates of the 1995 Institute of Medicine report, Nursing, Health, and the Environment, in formal educational programs, through continuing education for nurses, workshops, symposia, and regional faculty development trainings. Since the formation of the Alliance of Nurses for Healthy Environments, collaborative efforts led to the development of competencies, nursing outreach to organizations such as the American Nursing Association, the National Council of State Boards of Nursing, and the American Association of Colleges of Nursing to advance practice standards, academic curriculum, and the development of an electronic textbook. The environmental health nursing agenda moved forward since the publication of the 1995 IOM report; however, the development of the Alliance of Nurses for Healthy Environments accelerated the educational accomplishments through organizational collaboration.