Green building refers to a structure and using process that is environmentally responsible and resource-efficient throughout a building's life-cycle. The Green Building project differs from conventional building projects by assigning equal priorities to economical, social, and environmental goals. LCA recognized that it is critical to the design of environmentally responsible buildings. Research shows that such a building improves tenants' satisfaction and health, enabling higher employee productivity. As a result of the increased interest in green building concepts and practices, a number of organizations have developed standards, codes and rating systems conservation of water, energy, and building materials, and occupant comfort and health.
Green building (also known as green construction or sustainable building) refers to a structure and using process that is environmentally responsible and resource-efficient throughout a building's life-cycle: from site selection to design, construction, operation, maintenance, renovation, and demolition. This practice expands and complements the classical building design concerns of economy, utility, durability, and comfort
Green building brings together a vast array of practices and techniques to reduce and ultimately eliminate the impacts of buildings on the environment and human health
Green buildings are designed to reduce the overall impact of the built environment on human health and the natural environment by:
Efficiently using energy, water, and other resources
Protecting occupant health and improving employee productivity
Reducing waste, pollution and environmental degradation
A similar concept is natural building, which is usually on a smaller scale and tends to focus on the use of natural materials that are locally. Other related topics include sustainable design and green architecture.
Reducing environmental impact:
Green building practices aim to reduce the environmental impact of buildings, and the very first rule is, do not build in sprawl. No matter how much grass you put on your roof, no matter how many energy-efficient windows, etc., you use, if you build in sprawl, you've just defeated your purpose. Buildings account for a large amount of land .According to the National Resource Inventory, approximately 107 million acres (430,000 km2) of land in the United States are developed. The International Energy Agency released a publication that estimated that existing buildings are responsible for more that 40% of the world’s total primary energy consumption and for 24% of global carbon dioxide emissions.