The objective of this course is to support urban water and sanitation utilities in transitioning to climate-resilient management by reducing their carbon emissions. This course, consisting of 4 modules, addresses the concept of climate change, its impacts, risks, and actions that can be employed for its mitigation, specifically within water and sanitation utilities. In this context, an introduction to climate financing is provided, explaining how companies can secure funding for projects that yield climate-related benefits. Furthermore, a roadmap is developed, focusing on actions that water and sanitation companies can undertake to reduce their greenhouse gas emissions. To assess the carbon footprint, measure energy efficiency, and identify opportunities for performance improvement in the urban water sector, the course introduces the first holistic tool in the sector called ECAM, which stands for Energy Performance and Carbon Emissions Assessment and Monitoring Tool. Part of] the material was produced by the Water and Wastewater Companies for Climate Mitigation (WaCCliM) project (2013-2022), a joint initiative between GIZ and the International Water Association (IWA). This project was part of the International Climate Initiative (IKI), financed by the Federal Government of Germany.