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Zero-carbon city
A zero-carbon city runs entirely on renewable energy; it has no carbon footprint and will not cause harm to the planet.〔(World's First Zero Carbon City ) from (Eco Worldly website ). Retrieved April 2009.〕 Most cities throughout the world produce energy by burning coal, oil and gas, unintentionally emitting carbon. Almost every activity humans do involves burning one of these fossil fuels. To become a zero carbon city, an established modern city must collectively reduce emissions of greenhouse gases to zero and all practices that emit greenhouse gases must cease. Also, renewable energy must supersede other non-renewable energy sources and become the sole source of energy, so a zero-carbon city is a renewable-energy-economy city. This transition which includes decarbonising electricity (increasing the importance of the sources of renewable electricity) and zero-emission transport, is undertaken as a response to climate change. Zero-carbon cities maintain optimal living conditions while eliminating environmental impact. Instead of using established cities, many developers are starting from scratch in order to create a zero-carbon city. This way they can make sure every aspect of a city contributes to it being carbon free.
==Cities aspiring to be Carbon-free==
There are two places that are prototyped to become zero-carbon cities: Masdar City, United Arab Emirates and Dongtan, China.〔CCC Newsdesk. (2008, June 4). Eco-cities: Masdar city’s new eco-model. Retrieved from http://www.climatechangecorp.com/content.asp?ContentID=5361〕
Malacca also has a stated ambition to become a carbon-free city, with a Low Carbon Cities programme being piloted in Malaysia as of 2014.〔("Low carbon cities are the core of Malaysia's green future" ), ''The Carbon Trust'', Retrieved on 20 January 2015.〕 Once created these cities will become living examples of sustainable development, which demonstrate optimal resource utilization.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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