Being a Green Building consultancy, the constructed environment can have significant effects on the natural environment as well as the people who live in buildings daily. These effects can be both beneficial and harmful, according to the U.S. Green Building Council, which defines green building as a holistic concept. Green building aims to maximize their positive impact and minimize their negative ones throughout a building's life cycle (from conception to demolition). To do this, it emphasizes using renewable materials and energy sources, enhances indoor air quality and energy efficiency, reduces overall emissions, and uses various technologies that protect and enhance biological diversity and ecosystems.