Recently some of the world cities have started to invest on green technologies that cause saving in urban energy use. A very good example is London. Some zones and pilot projects have been defined as the first test areas.
Three fourth of total carbon emission of London is caused by its buildings and 90 percent of this amount can be saved by using energy saving technologies.
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Power saving should be a daily activity as it will help you save money and it will help you save and protect the environment.
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