Circular and Low Carbon Cities


The CALC project works at the intersection of two critical global challenges: Climate change and resource scarcity. The aim of the project is to support cities in making choices to increase circularity and reduce emissions. Three of ISWA’s Working Groups are involved in the project, the Working Group on Recycling & Waste Minimisation, Climate Change & Waste Management and Biological Treatment of Waste, as well as a team of dedicated volunteers. The project is now entering its second year.

Activity Update

The CALC project is working to develop and test metrics to benchmark circularity in cities, and to create a network of cities. For metrics, the project is developing metrics on city circularity. The project will connect the indicators with a GHG/CO2 calculator to calculate avoided GHG impacts as cities become more circular. The City Network is a network of high-income and/or complex cities which share experiences on increasing circularity and reducing CO2 emissions.

Recent publications

Why join the City Network?

  • Share good, bad and best practices on circularity and low carbon.
  • Exchange knowledge and experiences with other cities.

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Anne Scheinberg
Anne Scheinberg


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Chair of Recycling and Waste Minimisation Working Group at International Solid Waste Association.

Contact coordinator

Dienke Dijksterhuis is happy to answer your questions. Fill out the form and she will get back to you as soon as possible.