Green infrastructure and public policies: An international review of green roofs and green walls incentives

Cost-Effectiveness of Green Roofs

Life-cycle assessment was used to evaluate the widespread installation of green roofs in a typical urban mixed-use neighborhood. Market prices of materials, construction, energy conservation, storm-water management, and greenhouse gas GHG emission reductions were used to evaluate private and social costs and benefits. Results suggest green roofs are currently not cost effective on a private cos...

Green Infrastructure

The concept of “Green Infrastructure” (GI) is gaining political momentum and has been rapidly introduced in both planning theory and policy, especially in US and Europe (see Lennon, 2014). Yet, it does not have a single widely recognised or accepted definition (Wright, 2011). The term has been adopted by various disciplines (e.g., land conservation, urban design and landscape architecture), som...

Carbon sequestration potential of extensive green roofs.

Two studies were conducted with the objective of quantifying the carbon storage potential of extensive green roofs. The first was performed on eight roofs in Michigan and four roofs in Maryland, ranging from 1 to 6 years in age. All 12 green roofs were composed primarily of Sedum species, and substrate depths ranged from 2.5 to 12.7 cm. Aboveground plant material was harvested in the fall of 20...

Making green infrastructure healthier infrastructure

Increasing urban green and blue structure is often pointed out to be critical for sustainable development and climate change adaptation, which has led to the rapid expansion of greening activities in cities throughout the world. This process is likely to have a direct impact on the citizens' quality of life and public health. However, alongside numerous benefits, green and blue infrastructure a...

Growing Green Roofs, City by City