In the latest issue of Brooklyn Botanic Garden's online science journal, Urban Habitats, there is a special section on the use of green roofs as nature habitats for plants and birds. Researchers from Europe and the U.S. show that green roofs are effective when used for nature.
The publication, Urban Habitats and the issue on green roofs is at
One green roof in Germany, built 90-years ago, was planted with an orchid garden in native soil. Their success led to more green roof being put in place in London over the past 15 years. Now ecologists are hoping green roofs will help solve the problems of degraded urban environments.