Water and wastewater utilities can become leaders in climate mitigation, reducing greenhouse gas emissions while lowering their operational costs, improving their services to the public and protecting the environment.

WaCCliM pilot utilities have identified up to 30% CO2e reduction potentials by 2018. Early adopters of the WaCCliM roadmap to carbon neutrality are well positioned for an uncertain water-climate future.

News and Resources

Pilot Utilities

WaCCliM is working with pilot water utilities in four countries. Water utilities working with WaCCliM are becoming sector leaders, and are seizing the opportunity to become more efficient and effective in an uncertain future.

WaCCliM pilot utilities are already showing WaCCliM’s impact

WaCCliM Roadmap

Water sector emissions are typically assessed in a fragmented way under different urban sectors. WaCCliM provides specific carbon accounting for the urban water cycle, and has delivered promising solutions to decarbonize the water sector. 


WaCCliM has developed an innovative carbon and energy assessment tool (ECAM) to help water utilities invest wisely to address their water and climate challenges. ECAM benchmarks the energy used or produced to highlight savings opportunities, and provides a holistic overview of a utility’s carbon emissions.

Start the journey towards energy and carbon neutrality with the ECAM tool

Join WaCCliM

At scale, WaCCliM can help drive climate action in urban water services by decreasing greenhouse gas emissions and increasing energy savings. Join us and support the WaCCliM roadmap for low energy, low carbon utilities.


The Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) and the International Water Association (IWA) are working together with their partners from Jordan, Mexico, Peru and Thailand on the WaCCliM project. This project is part of the International Climate Initiative (IKI). The German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) supports this initiative on the basis of a decision adopted by the German Bundestag.