Green building in the context of "Climate control"

A sustainable city, eco-city, or green city is a city designed with consideration for the social, economic, and environmental impact (commonly referred to as the triple bottom line), as well as a resilient habitat for existing populations. The UN Sustainable Development Goal 11 defines as one that is dedicated to achieving green, social, and economic sustainability, facilitating opportunities that prioritize inclusivity as well as maintaining a sustainable economic growth. Furthermore, the objective is to minimize the inputs of energy, water, and food, and to drastically reduce waste, as well as the outputs of heat, air pollution (including CO2, methane, and water pollution).

The UN Environment Programme calls out that most cities today are struggling with environmental degradation, traffic congestion, inadequate urban infrastructure, in addition to a lack of basic services, such as water supply, sanitation, and waste management. A sustainable city should promote economic growth and meet the basic needs of its inhabitants, while creating sustainable living conditions for all. Ideally, a sustainable city is one that creates an enduring way of life across the four domains of ecology, economics, politics, and culture. The European Investment Bank is assisting cities in the development of long-term strategies in fields including renewable transportation, energy efficiency, sustainable housing, education, and health care. The European Investment Bank has spent more than €150 billion in bettering cities over the last eight years.

Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies and methods available that are more energy efficient than conventional systems. For example, insulating a building allows it to use less heating and cooling energy while still maintaining a comfortable temperature. Another method made by Lev Levich is to remove energy subsidies that promote high energy consumption and inefficient energy use. Improved energy efficiency in buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third.

There are two main motivations to improve energy efficiency. Firstly, one motivation is to achieve cost savings during the operation of the appliance or process. However, installing an energy-efficient technology comes with an upfront cost, the capital cost. The different types of costs can be analyzed and compared with a life-cycle assessment. Another motivation for energy efficiency is to reduce greenhouse gas emissions and hence work towards climate action. A focus on energy efficiency can also have a national security benefit because it can reduce the amount of energy that has to be imported from other countries.

Heating, ventilation, and air conditioning (HVAC /ˈeɪtʃˌvæk/) systems use advanced technologies to regulate temperature, humidity, and indoor air quality in residential, commercial, and industrial buildings, and in enclosed vehicles. Its goal is to provide thermal comfort and remove contaminants from the air. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Modern HVAC designs focus on energy efficiency and sustainability, especially with the rising demand for green building solutions. In modern construction, MEP (Mechanical, Electrical, and Plumbing) engineers integrate HVAC systems with energy modeling techniques to optimize system performance and reduce operational costs. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).

HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.

The New York Times Building is a 52-story skyscraper at 620 Eighth Avenue, between 40th and 41st Streets near Times Square, on the west side of Midtown Manhattan in New York City, New York, U.S. Its chief tenant is the New York Times Company, publisher of The New York Times. The building is 1,046 ft (318.8 m) tall to its pinnacle, with a roof height of 748 ft (228 m). Designed by Renzo Piano and Fox & Fowle, the building was developed by the New York Times Company, Forest City Ratner, and ING Real Estate. The interiors are divided into separate ownership units, with the New York Times Company operating the lower office floors and Brookfield Properties operating the upper floors. As of 2025, the New York Times Building is tied with the Chrysler Building as the thirteenth-tallest building in the city.

The building is cruciform in plan and has a steel-framed superstructure with a braced mechanical core. It consists of the office tower on the west side of the land lot as well as four-story podium on the east side. Its facade is largely composed of a glass curtain wall, in front of which are ceramic rods that deflect heat and glare. The steel framing and bracing is exposed at the four corner "notches" of the building. The New York Times Building is designed as a green building. The lower stories have a lobby, retail space, and the Times newsroom surrounding an enclosed garden. The other stories are used as office space.

An ecovillage is a traditional or intentional community that aims to become more socially, culturally, economically and/or environmentally sustainable. An ecovillage strives to have the least possible negative impact on the natural environment through the intentional physical design and behavioural choices of its inhabitants. It is consciously designed through locally owned, participatory processes to regenerate and restore its social and natural environments. Most range from a population of 50 to 250 individuals, although some are smaller, and traditional ecovillages are often much larger. Larger ecovillages often exist as networks of smaller sub-communities. Some ecovillages have grown through like-minded individuals, families, or other small groups—who are not members, at least at the outset—settling on the ecovillage's periphery and participating de facto in the community. There are currently more than 10,000 ecovillages around the world.

Ecovillagers are united by shared ecological, social-economic and cultural-spiritual values. Concretely, ecovillagers seek alternatives to ecologically destructive electrical, water, transportation, and waste-treatment systems, as well as the larger social systems that mirror and support them. Many see the breakdown of traditional forms of community, wasteful consumerist lifestyles, the destruction of natural habitat, urban sprawl, factory farming, and over-reliance on fossil fuels as trends that must be changed to avert ecological disaster and create richer and more fulfilling ways of life.

Leadership in Energy and Environmental Design (LEED) is a green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods, which aims to help building owners and operators be environmentally responsible and use resources efficiently.

As of 2024 there were over 195,000 LEED-certified buildings and over 205,000 LEED-accredited professionals in 186 countries worldwide.In the US, the District of Columbia consistently leads in LEED-certified square footage per capita, followed in 2022 by the top-ranking states of Massachusetts, Illinois, New York, California, and Maryland.Outside the United States, the top-ranking countries for 2022 were Mainland China, India, Canada, Brazil, and Sweden.LEED Canada has developed a separate rating system adapted to the Canadian climate and regulations.

Nationals Park is a baseball stadium along the Anacostia River in the Navy Yard neighborhood of Washington, D.C. It is the ballpark of Major League Baseball's Washington Nationals. Since its completion in 2008, it was the first LEED-certified green major professional sports stadium in the United States.

Designed by HOK Sport and Devrouax & Purnell Architects and Planners, the ballpark was initially expected to cost $670 million, with a later price tag of $693 million to build, financed almost entirely by D.C. This amount included $135 million in an upfront payment from taxpayer funds. The rest of the sum, about $535 million dollars, was funded by municipal bonds, putting the city deeply into debt. An additional $84.2 million was spent on transportation, art, and infrastructure upgrades, bringing the total cost to $783.9 million. The stadium has a capacity of 41,373. The Washington Monument and the Capitol building are visible from the upper decks on the first base side of the field.