Companies around the world invest in strong environmental, health and safety management, known as EHS. From an environmental standpoint, it involves creating a systematic approach to managing waste, complying with environmental regulations, or reducing the company's carbon footprint. From a health and safety standpoint, it includes measures to address ergonomics, air quality, and other aspects of workplace safety that affect employee health and well-being. The differently ordered ESH, HSE or SHE all refer to the same professional practice..