Can cities of the future be designed to be truly sustainable? In a world where more than half of the human population calls cities their home, the need to restructure and revolutionize how we design our urban environments has never been greater. Currently, the idea that these vast metropolises of metal, concrete and mud could one day fully become pillars of sustainability is certainly ridiculous. However, as these same cities steadily grow and multiply around the world, using an ever-increasing share of our planet's energy, this impossible task becomes a necessary goal. Tending towards the closed and continuous cycle of "true" sustainability could significantly alter the image of the modern city. Any improvement over the current state of urban affairs could have weight, and even if that goal were not fully achieved, the benefits gained would be immense. As mentioned above, cities are currently the antithesis of even the most basic sense of sustainability. To concisely define the term "sustainability" would mean saying that it represents living according to one's needs. When it comes to the city, with almost zero local sources of food or goods, the means are pushed and distorted to include resources that come far beyond the confines of the urban landscape. Those who live in cities paradoxically have both minimal and vast options when it comes to continuing their existence, but this clouded reality depends entirely on the resources a city can draw on with its constantly active economy. Certainly there are cities that are determined to transform themselves into greener representatives of urban civilization, but these efforts are typically focused on minimizing the cities' harmful output rather than trash... middle of paper... architectures would lead to a more organic organization, advantageous for the people who choose to live in this city. While this sustainable city model is not a perfectly closed loop, it lays the foundation for one that is. Over time, with the constant evolution and improvement of technology and new design methods from the scale of products to buildings, the gaps in the cycle could be filled and a “true” sustainable city could be fully realized. Works CitedSteward TA Pickett, Brian McGrath, ML Cadenasso, and Alexander J. Felson. “Ecological resilience and resilient cities”. Construction Research and Information, 42:2 (2014), 143-157Rogers, Richard. City for a small planet. Sl: BBC Radio 4, 1995. Axehausen and Erath. "Urban sustainability and transport: research framework for medium and long-term transport planning". Trips 7 (2011): 7-19.