Context: The integration of well-designed nature-based solutions (NbS) into buildings and urban environments can help bring nature back into human developments, drastically reduce ambient temperatures, and provide a wide range of health and resilience benefits that reduce the impacts of other risks on the local population. The use of trees, vegetation, water bodies, green roofs/surfaces, in urban environments can improve thermal comfort, mitigate the Urban Heat Island Effect (UHI), reduce energy needs for cooling and ventilation in buildings, increase the livability of the built environment by providing shading, as well as improve air quality, stormwater management, water pollution, carbon capture, green jobs, walkability, access to nature and biodiversity. The recognition of the benefits of bringing back nature to human settlements has led to bold action to support and implement nature-based solutions by some cities and developers. However, the mass integration of nature-based solutions for cooling at the needed scale has not happened to date.

Objective: Help accelerate the development of NbS for cooling globally through the following supporting activities:

– Aggregate and disseminate existing case studies, best practices and insights;

– Align and amplify messaging and outreach efforts on cooling NbS benefits and opportunities

– Support Cool Coalition members in the development of urban cooling strategies and tools that include NbS by providing ad-hoc research and analysis on best practices and lessons learned for planning and financing NbS solutions.

– Link thermal comfort to existing urban NbS efforts on adaptation, pollution, biodiversity, water management.

– Contribute and support the development of a NbS content for the Sustainable Cooling for Cities Handbook under development by RMI, UNEP and GCoM.

– Contribute to COP 26 preparation and possibly other global events to help highlight the benefits NbS for cooling.


РLead: Jennifer Lenhart, Global Expert on Cities, WWF

– Facilitator: Irene Fagotto, Cool Coalition Secretariat, United Nations Environment Programme (UNEP),

Download the working group’s concept note here.