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

Abba Eban

"Then I say the Earth belongs to each generation during its course, fully and in its right no generation can contract debts greater than may be paid during the course of its existence"

Thomas Jefferson, September 6, 1789

"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)

The conference is planned to be held September 1-5, 2020 in Cologne.
In case there are still travel disruptions for some countries, the conference will enable online presentations of such papers that will have the same publishing procedure as if presented in person.



Abstract deadline (archival) March 30, 2020
Reduced fee request (no longer available) March 12, 2020
Archival full paper  April 15, 2020
Fees due - archival papers, reduced fee (extended deadline) June 5, 2020
Fees due - membership waiver (extended deadline) June 5, 2020
Visa requests and visa fee settlement June 11, 2020
Abstract deadline (conference) June 30, 2020
Full fee for conference papers in Special Session June 30, 2020
Full fee for conference papers July 30, 2020
Corporate fee deadline July 30, 2020
Conference full paper August 13, 2020
Draft online digital proceedings August 24, 2020
The Conference September 1-5, 2020
Final online digital proceedings October 15, 2020
Submission of papers to special issues depending on the journal


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.