Today the towns are illuminated by concrete and iron; the greyness invades landscape, animals are captivated inside parks and the “green” disappeared from the streets. The result: the unhappiness of individuals increases. Reintegration of nature in our cities seems a solution. In Brussels (capital of Belgium) a crazy challenge is launched. The project “Mobi l2040” wants to confront the demographic boom that will be in the city in thirty years. It aims to decongestant road traffic and to reintegrate nature into urban planning. Specifically, it is to increase pedestrian areas, the number of public transport and bike access. Furthermore, is to develop community gardens and public parks.
In Seoul, the same challenge is launched! The capital of Korea decided to convert a big highway abandoned in a green park. This new garden is more than a kilometre long. There will find more than 254 plants species. Another example is in the Middle East, Masdar City is a green planned city project in Abu Dhabi. The main objective is to promote environment-friendly and renewable energies to reach a zero level of carbon dioxide emissions. The electricity will be generated by photovoltaic panels and air conditioning with solar energy. The most important that Masdar is a city that has cars; trams and automated transport systems with stops every 200 meters that will allow people to move around the city. Abu Dhabi tries to reduce its dependence on oil in the future.
Since its creation, the city appears as the physical footprint of the individual’s power and ability to transform its environment. In the Ancient Greek cities, towns medieval and contemporary metropolises, history shows that citizens have continued to adapt the cities themselves. Today over 50 percent of the world population live in cities. Making our urban spaces chaotic universe in which mix concrete and iron. The breakage between the individual and his natural environment is accomplished. It’s important to develop the city for the citizen and no for the cars. A City is where people live, meet and make relationships in conviviality and not just to drive. By Giuseppe Orobello
 In http://www.mobil2040.irisnet.be
 ‘‘MVRDV to transform Seoul overpass into High Line-inspired park’’, in De teen magazine. URL: http://www.dezeen.com/2015/05/13/mvrdv-studio-makkink-bey-transform-seoul-overpass-into-high-line-inspired-park-seoul-skygarden
 ‘‘Masdar City’’, in Wikipedia. URL: https://en.wikipedia.org/wiki/Masdar_City
 « Population urban », in Statistiques Mondiale, en ligne. URL: http://www.statistiques-mondiales.com/population_urbaine.htm