Horizon scanning (HS) or also horizon scan is a method from futures studies, sometimes regarded as a part of foresight. It is the early detection and assessment of emerging technologies or threats for mainly policy makers in a domain of choice. Such domains include agriculture, environmental studies, health care, biosecurity, and food safety.
Some sources mention HS as an alternative name for environmental scanning (ES), or view HS as a subset of ES, or at least suggest ES to have a similar goal to HS. In summary, ES has key differences to HS. ES is rather concerned to provide industry specific information for short-term decision making in a competitive environment.