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"History teaches us that men and nations behave wisely once they have exhausted all other alternatives"

Abba Eban

Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

The Report of the U.N. Brundtland Commission, Our Common Future, 1987

"You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete."

Buckminster Fuller, philosopher, futurist and global thinker (1895 - 1983)

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Practical info

Please contact us at sdewes2020@sdewes.org for any questions.

 

Useful links:

Cologne Tourist Board: www.cologne-tourism.com/

Blog of Cologne Tourist Board: blog.koelntourismus.de/en/

KölnCard: www.cologne-tourism.com/book-buy/koelncard/


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SDEWES INDEX
Benchmarking the performance of cities across energy, water and environment systems
related metrics presents an opportunity to trigger policy learning, action, and cooperation to bring cities closer to sustainable development.

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