Increasing urbanization, coupled with limited urban planning, puts cities at risk from climate change. Ecosystem-based approaches to Adaptation (EbA) are a cost-effective approach to reduce the vulnerability of urban and peri-urban communities to climate change. The Green wall and green roofs are defined also potential urban EbA components and can be seen as complimentary to the land-based gardens in the efforts of maintaining green spaces in urban areas while there is limited land. The Implementation Guideline on Green Wall and Green Roofs has been developed based on practical experiences of piloting Green Wall and Green Roofs in Dong Hoi city, Quang Binh province, Viet Nam in the scope of the “Support to Viet Nam for the Implementation of the Paris Agreement” (VN-SIPA) project. The guideline aims at enabling the implementation of such measures in a variety of other contexts and locations by providing basic technical concepts, details of benefits, and implementation procedures.

The interrelationship of urban development and growth and the increasing impact of climate change require that adjustments be made to urban planning and development. The integration of elements of Ecosystem-based Adaptation (EbA) into urban development provides an opportunity for cities create attractive, green, healthy, and livable urban spaces. The Implementation Guidelines on Water Retention Areas have been developed based on practical experiences of piloting Water Retention Areas in Dong Hoi city, Quang Binh province, Viet Nam in the scope of the “Support to Viet Nam for the Implementation of the Paris Agreement” (VN-SIPA) project. The guidelines provide an in-depth analysis of the technical concepts regarding the measures and the financial requirements for users.