Times are challenging, irrespective of whether the landscape is viewed from an economic, political, or social perspective. NEHA Presidents have challenged the profession to look at workforce development issues, and raised the question as to what the future of environmental health practice looks like. Does Environmental Health need to be re-defined or refined every five years or so? After attending this session you will understand some of the current challenges to the environmental health practice, and be able to define characteristics of threshold concepts and how they might be applied in a variety of environmental health contexts.