Super Sustainable Gothenburg, Gothenburg, Sweden
Kjellgren Kaminsky Architecture

Gothenburg faces a challenge comparable in size with the industrial revolution, in order to become a sustainable city.
To achieve this vision, the city must change both its mindset and its built environment. With a starting point in the Gothenburg 2050 vision conducted by the municipality, Kjellgren Kaminsky Architecture presents an architectural vision for a sustainable Gothenburg.
The current ecological footprint of Gothenburg is 2.5 million global hectare. If all citizens in the world used as much resources we would need 3 globes to survive. Now, imagine Gothenburg had an ecological footprint of its own size. The city would have to make drastic changes in many fields, such as how transportation, energy, food and waste is handled. 
Take a look at Gothenburg from above. Like most western cities it is pretty grey. Roofs, streets and squares are all covered with inorganic materials. Just the rooftops constitutes one third of the city. This area could be used better. On the flat roofs and in parks crops could be grown. On south facing roofs solar panels could be mounted. Small windmills could produce electricity. More apartments could be built on some roofs. 
A network of sustainable highways could connect the city. They would work as personal rapid transit systems and shelter cycling highways. The sustainable highways could even collect energy and water. 
The city will grow with 8,000 new inhabitants a year until 2020. How this growth is handled, will be decisive for the future of the city. During the last century Gothenburg has grown sprawl. If the city grew denser, distances and transports would decrease. 
Today, the river Göta älv constitutes a border straight through Gothenburg. Here the city could be densified and connected. Heavy shipping traffic, now passing through the city center, could be redirected to Nodre Älv north of Gothenburg. The development Kjellgren Kaminsky Architecture propose on the river would house one third of the estimated city growth until 2020, and form a strong connection between the riversides. 
Here roofs can be used for leisure, agriculture and solar power. The roofs are terraced to the south so that people, plants and solar panels will have more sun and the apartments will need less heating and lightning. The structures take inspiration from the traditional social and architectural heritage of the city; such as yellow bricks, streets paved with granite, markets and canals.
To spread and develop this vision, Kjellgren Kaminsky Architecture started the blog The blog had many contributors who presented new ideas on sustainable city planning, both in Gothenburg and abroad.
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