Konstantyn Spasokukotskiy put simple photos: flickr.com by Konstantyn actual challenge & perspectives

Article 2,Universal Declaration of Human Rights “ “ Universal Declaration of Human Rights http://en.wikipedia.org/wiki/Universal_Declaration_of_Human_Rights

the total consumable product civilized

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http://www.eoearth.org/article/Energy_return_on_investment_(EROI)

of other people

Universal Declaration of Human Rights http://en.wikipedia.org/wiki/Universal_Declaration_of_Human_Rights