Data, tours, history, practical information and a study guide, from the American Society of Landscape Architects.

Federation of fifteen national associations that promote and encourage the uptake of green roofs and green walls in their countries to help address issues related to climate change, ecosystem services, green infrastructure and lack of green space in the built environment.

Information on green roofs, with a focus on the soil science

Green roof information and statistics including the Green Roof Industry Survey.

Green Roofs for Healthy Cities (GRHC) develops and protects the market by increasing the awareness of the economic, social and environmental benefits of green roofs, green walls, and other forms of living architecture through education, advocacy, professional development and celebrations of excellence

Livingroofs.org is an independent organisation set up by Dusty Gedge in 2002 to promote green roofs and living walls in urban areas in the UK and around the world. The organisation has been a member of the European Federation of Green Roof and Wall Associations (EFB) since 2006.