Sustainable city
Encyclopedia
A sustainable city, or eco-city is a city designed with consideration of environmental impact, inhabited by people dedicated to minimization of required inputs of energy, water and food, and waste output of heat, air pollution - CO2, methane
Methane
Methane is a chemical compound with the chemical formula . It is the simplest alkane, the principal component of natural gas, and probably the most abundant organic compound on earth. The relative abundance of methane makes it an attractive fuel...

, and water pollution. Richard Register first coined the term "ecocity" in his 1987 book, Ecocity Berkeley: building cities for a healthy future. Other leading figures who envisioned the sustainable city are architect
Architect
An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...

 Paul F Downton
Paul F Downton
Paul F Downton is a sustainable city theorist and activist, ecological architect, urbanist and professional writer on architecture, ecocities, environment and the arts.He designed the Christie Walk development in Adelaide, Australia....

, who later founded the company Ecopolis Pty Ltd, and authors Timothy Beatley
Timothy Beatley
Dr Timothy Beatley is an internationally recognized sustainable city researcher and author. His writings have focused on creative strategies cities can use to reduce their ecological footprints and become more livable and equitable places in the process...

 and Steffen Lehmann
Steffen Lehmann
Steffen Lehmann is a German-born architect and urban designer, born 19 June 1963 in Stuttgart, Germany.-Biography:Lehmann holds the UNESCO Chair in Sustainable Urban Development for Asia and the Pacific, the Professorial Chair in the School of Architecture and Built Environment at the University of...

, who have written extensively on the subject. The field of industrial ecology
Industrial ecology
Industrial Ecology is the study of material and energy flows through industrial systems. The global industrial economy can be modeled as a network of industrial processes that extract resources from the Earth and transform those resources into commodities which can be bought and sold to meet the...

 is sometimes used in planning these cities.

A sustainable city can feed itself with minimal reliance on the surrounding countryside, and power itself with renewable sources of energy. The crux of this is to create the smallest possible ecological footprint
Ecological footprint
The ecological footprint is a measure of human demand on the Earth's ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet's ecological capacity to regenerate. It represents the amount of biologically productive land and sea area necessary to...

, and to produce the lowest quantity of pollution
Pollution
Pollution is the introduction of contaminants into a natural environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy, such as noise, heat or light...

 possible, to efficiently use land; compost used materials, recycle it or convert waste-to-energy
Waste-to-energy
Waste-to-energy or energy-from-waste is the process of creating energy in the form of electricity or heat from the incineration of waste source. WtE is a form of energy recovery...

, and thus the city's overall contribution to climate change
Climate change
Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average...

 will be minimal, if such practices are adhered to.

It is estimated that around 50% of the world’s population now lives in cities and urban areas. These large communities provide both challenges and opportunities for environmentally conscious developers. In order to make them more sustainable, building design and practice, as well as perception and lifestyle must adopt sustainability thinking.

Practical achievement

These ecological cities are achieved through various means, such as:
  • Different agricultural systems
    Agriculture
    Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

     such as agricultural plots within the city (suburbs or centre). This reduces the distance food has to travel from field to fork
    Food miles
    Food miles is a term which refers to the distance food is transported from the time of its production until it reaches the consumer. Food miles are one factor used when assessing the environmental impact of food, including the impact on global warming....

    . Practical work out of this may be done by either small scale/private farming plots or through larger scale agriculture (e.g. farmscrapers
    Vertical farming
    Vertical farming is a concept that argues that it is economically and environmentally viable to cultivate plant or animal life within skyscrapers, or on vertically inclined surfaces...

    ).
  • Renewable energy
    Renewable energy
    Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable . About 16% of global final energy consumption comes from renewables, with 10% coming from traditional biomass, which is mainly used for heating, and 3.4% from...

     sources, such as wind turbines, solar panels, or bio-gas created from sewage
    Sewage
    Sewage is water-carried waste, in solution or suspension, that is intended to be removed from a community. Also known as wastewater, it is more than 99% water and is characterized by volume or rate of flow, physical condition, chemical constituents and the bacteriological organisms that it contains...

    . Cities provide economies of scale
    Economies of scale
    Economies of scale, in microeconomics, refers to the cost advantages that an enterprise obtains due to expansion. There are factors that cause a producer’s average cost per unit to fall as the scale of output is increased. "Economies of scale" is a long run concept and refers to reductions in unit...

     that make such energy sources viable.
  • Various methods to reduce the need for air conditioning
    Air conditioning
    An air conditioner is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The cooling is done using a simple refrigeration cycle...

     (a massive energy demand), such as planting trees and lightening surface colors, natural ventilation systems
    Natural ventilation
    Natural ventilation is the process of supplying and removing air through an indoor space without using mechanical systems. It refers to the flow of external air to an indoor space as a result of pressure or temperatures differences. There are two types of natural ventilation occurring in...

    , an increase in water features, and green spaces equaling at least 20% of the city's surface. These measures counter the "heat island effect" caused by an abundance of tarmac and asphalt, which can make urban areas several degrees warmer than surrounding rural areas—as much as six degrees Celsius during the evening.
  • Improved public transport
    Public transport
    Public transport is a shared passenger transportation service which is available for use by the general public, as distinct from modes such as taxicab, car pooling or hired buses which are not shared by strangers without private arrangement.Public transport modes include buses, trolleybuses, trams...

     and an increase in pedestrianization to reduce car emissions. This requires a radically different approach to city planning, with integrated business, industrial, and residential zones. Roads may be designed to make driving difficult.
  • Optimal building density to make public transport viable but avoid the creation of urban heat island
    Urban heat island
    An urban heat island is a metropolitan area which is significantly warmer than its surrounding rural areas. The phenomenon was first investigated and described by Luke Howard in the 1810s, although he was not the one to name the phenomenon. The temperature difference usually is larger at night...

    s.
  • Solutions to decrease urban sprawl
    Urban sprawl
    Urban sprawl, also known as suburban sprawl, is a multifaceted concept, which includes the spreading outwards of a city and its suburbs to its outskirts to low-density and auto-dependent development on rural land, high segregation of uses Urban sprawl, also known as suburban sprawl, is a...

    , by seeking new ways of allowing people to live closer to the workspace. Since the workplace tends to be in the city, downtown, or urban center, they are seeking a way to increase density by changing the antiquated attitudes many suburbanites have towards inner-city areas. One of the new ways to achieve this is by solutions worked out by the Smart Growth
    Smart growth
    Smart growth is an urban planning and transportation theory that concentrates growth in compact walkable urban centers to avoid sprawl and advocates compact, transit-oriented, walkable, bicycle-friendly land use, including neighborhood schools, complete streets, and mixed-use development with a...

     Movement.
  • Green roof
    Green roof
    A green roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems...

    s
  • Zero-emission transport
  • Zero-energy building
  • Sustainable urban drainage systems
    Sustainable urban drainage systems
    Sustainable Drainage Systems , sometimes known as Sustainable Urban Drainage Systems , are designed to reduce the potential impact of new and existing developments with respect to surface water drainage discharges.-Background:...

     or SUDS
  • energy conservation systems/devices
    Energy conservation
    Energy conservation refers to efforts made to reduce energy consumption. Energy conservation can be achieved through increased efficient energy use, in conjunction with decreased energy consumption and/or reduced consumption from conventional energy sources...

  • Xeriscaping
    Xeriscaping
    Xeriscaping and xerogardening refers to landscaping and gardening in ways that reduce or eliminate the need for supplemental water from irrigation...

     - garden and landscape design for water conservation
  • Key Performance Indicators - development and operational management tool providing guidance and M&V for city administrators.

Australia

  • Melbourne
    Melbourne
    Melbourne is the capital and most populous city in the state of Victoria, and the second most populous city in Australia. The Melbourne City Centre is the hub of the greater metropolitan area and the Census statistical division—of which "Melbourne" is the common name. As of June 2009, the greater...

    • City of Moreland
      City of Moreland
      The City of Moreland is a Local Government Area located within the metropolitan area of Melbourne, Victoria, Australia. It comprises the inner northern suburbs between 4 and 10 kilometres from the Melbourne city centre....

      . The City of Moreland in Melbourne's north, has programs for becoming carbon neutral, one of which is 'Zero Carbon Moreland', amongst other existing sustainable implementations and proposals.
    • City of Melbourne
      City of Melbourne
      The City of Melbourne is a Local Government Area in Victoria, Australia, located in the central city area of Melbourne. The city has an area of 36 square kilometres and has an estimated population of 93,105 people. The city's motto is "Vires acquirit eundo" which means "She gathers strength as she...

      . Over the past 10 years, various methods of improving public transport have been implemented, car free zones and entire streets have also been implemented.
  • City of Greater Taree
    City of Greater Taree
    The City of Greater Taree is a Local Government Area on the Mid North Coast of New South Wales, Australia, centered on Taree. It is on the Manning River, the Pacific Highway and the North Coast railway line.- History :...

    . The City of Greater Taree North of Sydney has developed a masterplan for Australia's first low-to-no carbon urban development.

Brazil

Southern cities of Porto Alegre
Porto Alegre
Porto Alegre is the tenth most populous municipality in Brazil, with 1,409,939 inhabitants, and the centre of Brazil's fourth largest metropolitan area . It is also the capital city of the southernmost Brazilian state of Rio Grande do Sul. The city is the southernmost capital city of a Brazilian...

 and Curitiba
Curitiba
Curitiba is the capital of the Brazilian state of Paraná. It is the largest city with the biggest economy of both Paraná and southern Brazil. The population of Curitiba numbers approximately 1.75 million people and the latest GDP figures for the city surpass US$61 billion according to...

 are often cited as examples of urban sustainability

Canada

In 2010, Calgary
Calgary
Calgary is a city in the Province of Alberta, Canada. It is located in the south of the province, in an area of foothills and prairie, approximately east of the front ranges of the Canadian Rockies...

 ranked as the top eco-city in the planet for its, "excellent level of service on waste removal, sewage systems, and water drinkability and availability, coupled with relatively low air pollution.” Ottawa
Ottawa
Ottawa is the capital of Canada, the second largest city in the Province of Ontario, and the fourth largest city in the country. The city is located on the south bank of the Ottawa River in the eastern portion of Southern Ontario...

 ranked in third place. The survey was performed in conjunction with the reputable Mercer
Mercer (consulting firm)
Mercer is a human resource and related financial services consulting firm, headquartered in New York City. The firm operates internationally in more than 40 countries, with more than 19,000 employees, and is the world's largest human resource consulting firm....

 Quality of Living Survey.

China

  • China is working with investment and technology supplied by the Singapore
    Singapore
    Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

     government to build an ecocity in the Coastal New District of Tianjin
    Tianjin
    ' is a metropolis in northern China and one of the five national central cities of the People's Republic of China. It is governed as a direct-controlled municipality, one of four such designations, and is, thus, under direct administration of the central government...

     City in northern China, named the "Sino-Singapore Tianjin Eco-city
    Sino-Singapore Tianjin Eco-city
    The Sino-Singapore Tianjin Eco-city is the result of a collaborative agreement between the governments of China and Singapore to jointly develop a socially harmonious, environmentally friendly and resource-conserving city in China...

    ".
  • Dongtan
    Dongtan
    Dongtan is a plan for a new eco-city on the island of Chongming in Shanghai, China. The name of the city literally translates as "East Beach".-Population:...

     Eco-city is the name of another project on the third largest island in China at the mouth of the Yangtze River
    Yangtze River
    The Yangtze, Yangzi or Cháng Jiāng is the longest river in Asia, and the third-longest in the world. It flows for from the glaciers on the Tibetan Plateau in Qinghai eastward across southwest, central and eastern China before emptying into the East China Sea at Shanghai. It is also one of the...

     near Shanghai
    Shanghai
    Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

    . The project was scheduled to accommodate 50,000 residents by 2010, but its developer has currently put construction on hold.
  • Huangbaiyu
    Huangbaiyu
    Huangbaiyu is a model sustainable village in Benxi, Liaoning, People's Republic of China. As of 2006, over 40 individual houses had been built, however the construction methods, costs, materials used and the design of each house has come under great criticism....

     is a small village of 42 homes that was built in China. It has come under great criticism: most of the homes are unoccupied by villagers.
  • As of April 2008, an ecocity collaboration project is being proposed for a district in Nanjing
    Nanjing
    ' is the capital of Jiangsu province in China and has a prominent place in Chinese history and culture, having been the capital of China on several occasions...

    , the capital city of Jiangsu Province on the Yangtze River, just west of Shanghai.
  • Rizhao
    Rizhao
    Rizhao is a prefecture-level city in southeastern Shandong province, People's Republic of China. It is situated on the coastline along the Yellow Sea, borders Qingdao to the northeast, Weifang to the north, Linyi to the west and southwest, and faces Korea and Japan across the Yellow Sea to the east...

     mandates of solar water heaters for households, and has been designated the Environmental Model City by China's SEPA.

Colombia

Since recent times started the project "Ecumenópolis
Ecumenopolis
Ecumenopolis is a word invented in 1967 by the Greek city planner Constantinos Doxiadis to represent the idea that in the future urban areas and megalopolises would eventually fuse and there would be a single continuous worldwide city as a...

", that proposes inclusion of advanced technology and energy-efficience by their own invention.

Denmark

The industrial park in Kalundborg
Kalundborg
Kalundborg is a city with a population of 16,434 in Kalundborg municipality in Denmark and the site of its municipal council. Kalundborg is on the main island Zealand, with Copenhagen, but opposite on the far western edge....

 is often cited as a model for industrial ecology.

Ecuador

Loja, Ecuador
Loja, Ecuador
Loja is the capital of Ecuador's Loja Province. It is located in the Cuxibamba valley in the south of the country, sharing borders with the provinces of Zamora-Chinchipe and El Oro, and with Peru in the south...

 won three international prizes for the sustainability efforts begun by its mayor Dr. Jose Bolivar Castillo.

Estonia

Oxford Residences for four seasons in Estonia
Estonia
Estonia , officially the Republic of Estonia , is a state in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia , and to the east by Lake Peipsi and the Russian Federation . Across the Baltic Sea lies...

, in development by the Oxford Sustainable Group
Oxford Sustainable Group
The Oxford Sustainable Group is a sustainable development company operating across Europe and managing four stock market listed companies, as well as its own portfolio with a value of between 2.5bn and 5bn Euro, which makes it one of the largest sustainable development groups in the region...

, winning a prize for Sustainable Company of the Year, is arguably one of the most advanced sustainable developments, not only trying to be carbon neutral
Carbon neutral
Carbon neutrality, or having a net zero carbon footprint, refers to achieving net zero carbon emissions by balancing a measured amount of carbon released with an equivalent amount sequestered or offset, or buying enough carbon credits to make up the difference...

, but already carbon negative and considering factors such as economic, financial
FINANCIAL
FINANCIAL is the weekly English-language newspaper with offices in Tbilisi, Georgia and Kiev, Ukraine. Published by Intelligence Group LLC, FINANCIAL is focused on opinion leaders and top business decision-makers; It's about world’s largest companies, investing, careers, and small business. It is...

, social development of the surroundings, environmental
Natural environment
The natural environment encompasses all living and non-living things occurring naturally on Earth or some region thereof. It is an environment that encompasses the interaction of all living species....

, food
Food
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals...

, energy
Energy
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems...

, government policy, local residents, education
Education
Education in its broadest, general sense is the means through which the aims and habits of a group of people lives on from one generation to the next. Generally, it occurs through any experience that has a formative effect on the way one thinks, feels, or acts...

, in fact more than most other development.

Germany

No other country has built more eco-city projects than Germany.
Freiburg im Breisgau is often referred to as green city. It is one of the few cities with a green mayor and is known for its strong solar economy. Vauban, Freiburg
Vauban, Freiburg
Vauban is a new neighborhood of 5,000 inhabitants and 600 jobs 4 km to the south of the town center in Freiburg, Germany. It was built as "a sustainable model district" on the site of a former French military base, and is named after Sébastien Le Prestre de Vauban, the 17th century French...

 is a sustainable model district. All houses are built to a low energy consumption standard and the whole district is designed to be carfree. Another green district in Freiburg is Rieselfeld, where houses generate more energy than they consume. There are several other green sustainable city projects such as Kronsberg in Hannover and current developments around Munich, Hamburg and Frankfurt.

Hong Kong

The government portray the proposed Hung Shui Kiu
Hung Shui Kiu
Hung Shui Kiu is an area between Ping Shan and Lam Tei, in the western part of the New Territories of Hong Kong. It covers parts of Yuen Long andTuen Mun districts. It is largely rural residential.-Transportation:...

 new town
New town
A new town is a specific type of a planned community, or planned city, that was carefully planned from its inception and is typically constructed in a previously undeveloped area. This contrasts with settlements that evolve in a more ad hoc fashion. Land use conflicts are uncommon in new...

 as an eco-city. The same happened with the urban development plan on the site of the former Kai Tak Airport
Kai Tak Airport
Kai Tak Airport was the international airport of Hong Kong from 1925 until 1998. It was officially known as the Hong Kong International Airport from 1954 to 6 July 1998, when it was closed and replaced by the new Hong Kong International Airport at Chek Lap Kok, 30 km to the west...

.

India

Manimekala is Hightec Eco city projected in Karaikal
Karaikal
Karaikal is a major port city of east coast of India and a municipality in Karaikal district in the Union Territory of Pondicherry, India. Several explanations are offered for the word 'Karaikal'. The imperial Gazetteer gives it the meaning 'fish pass'. According to Julien vinson the town is said...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 will be consider an area of 5 km2. It will be first of kind in South India.

Kenya

Hacienda - Mombasa
Mombasa
Mombasa is the second-largest city in Kenya. Lying next to the Indian Ocean, it has a major port and an international airport. The city also serves as the centre of the coastal tourism industry....

, Kenya
Kenya
Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...

. It is the largest development of eco-friendly residential properties in East Africa
East Africa
East Africa or Eastern Africa is the easterly region of the African continent, variably defined by geography or geopolitics. In the UN scheme of geographic regions, 19 territories constitute Eastern Africa:...

; construction is currently ongoing, and it will eventually be one of Africa’s first self-sustaining estates.

Korea

Songdo IBD is a planned city in Korea which has incorporated a number of eco-friendly features. These include a central park, irrigated with seawater, a subway line, bicycle lanes, rainwater catchment systems, pneumatic waste collection system, ... Finally, 75% of the waste generated by the construction of the city will be recycled.

Gwanggyo City Centre is another planned sustainable city in Korea.

New Zealand

The city of Waitakere
Waitakere
Waitakere City was the name of a city which existed from 1989 until 2010 in the Auckland region. It was New Zealand's fifth largest city, with an annual growth of about 2%...

, the Western part of the greater Auckland
Auckland
The Auckland metropolitan area , in the North Island of New Zealand, is the largest and most populous urban area in the country with residents, percent of the country's population. Auckland also has the largest Polynesian population of any city in the world...

 urban region, was New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

's first eco-city, working from the Greenprint, a guiding document that the City Council developed in the early 1990s.

Republic of Ireland

South Dublin County Council announced plans in late 2007 to develop Clonburris, a new suburb of Dublin to include up to 15,000 new homes, to be designed to achieve the highest of international standards. The plans for Clonburris include countless green innovations such as high levels of energy efficiency, mandatory renewable energy for heating and electricity, the use of recycled and sustainable building materials, a district heating system for distributing heat, the provision of allotments for growing food, and even the banning of tumble driers, with natural drying areas being provided instead.

Sweden

Gothenburg
Gothenburg
Gothenburg is the second-largest city in Sweden and the fifth-largest in the Nordic countries. Situated on the west coast of Sweden, the city proper has a population of 519,399, with 549,839 in the urban area and total of 937,015 inhabitants in the metropolitan area...

, and especially Älvstaden (central city by the river Göta Älv) are good examples of sustainable city in Sweden. They have low environmental impact, contain passive houses, good recycling system for waste, etc.

Hammarby Sjöstad
Hammarby Sjöstad
Hammarby Sjöstad is a part of Stockholm municipality, currently undergoing major urban redevelopment. It is located on both side of lake Hammarby sjö, bordering Nacka Municipality to the east...

, Stockholm

United Kingdom

  • St Davids
    St David's
    St Davids , is a city and community in Pembrokeshire, Wales. Lying on the River Alun on St David's Peninsula, it is Britain's smallest city in terms of both size and population, the final resting place of Saint David, the country's patron saint, and the de facto ecclesiastical capital of...

     the smallest city in the United Kingdom aims to be the first carbon neutral city in the world.
  • Leicester
    Leicester
    Leicester is a city and unitary authority in the East Midlands of England, and the county town of Leicestershire. The city lies on the River Soar and at the edge of the National Forest...

     is the United Kingdom's first environment city

United States

  • Arcosanti
    Arcosanti
    Arcosanti is an experimental town that began construction in 1970 in central Arizona, north of Phoenix, at an elevation of 3,732 feet...

    , Arizona
  • Treasure Island
    Treasure Island development
    The Treasure Island Development is a planned redevelopment on Treasure Island and parts of Yerba Buena Island in San Francisco Bay between San Francisco and Oakland within San Francisco city limits. Treasure Island's development is set to break ground during the year 2012.- Master Plan:The...

    , San Francisco: is another project that aims to create a small eco city.
  • Coyote Springs
    Coyote Springs, Nevada
    Coyote Springs, Nevada, is a master-planned community being developed in Lincoln County and Clark County, Nevada, by developer and attorney-lobbyist Harvey Whittemore and Pardee Homes.-Current development:...

     Nevada largest planned city in the United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

    .
  • Babcock Ranch Florida a proposed solar-powered city.
  • Douglass Ranch in Buckeye Arizona
  • Mesa del Sol
    Mesa del Sol
    Mesa del Sol is a proposed mixed use community in Albuquerque, New Mexico.-History:Mesa del Sol was approved as part of a public-private partnership strategy with the State of New Mexico, City of Albuquerque and University of New Mexico and has been planning stages since the 1980s...

     in Albuquerque,New Mexico
  • Sonoma Mountain Village in Rohnert Park, California*

See also

  • Bicycle City
    Bicycle City
    Bicycle City is a planned, car-free communities project with a mission to create sustainable places where people can live, work and visit. Parking is planned to be on the edge of the community near your home....

  • Transition town
  • Sustainable design
    Sustainable design
    Sustainable design is the philosophy of designing physical objects, the built environment, and services to comply with the principles of economic, social, and ecological sustainability.-Intentions:The intention of sustainable design is to "eliminate negative environmental...

  • Ecodistrict
    Ecodistrict
    An ecodistrict or eco-district is a neologism associating the terms "district" and "eco" as an abbreviation of ecological.It designates an urban planning aiming to integrate objectives of "sustainable development" and reduce the ecological footprint of the project...


Further reading


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK