Then, in 1991, Robert Gilman and Diane Gilman co-authored a germinal study called "Ecovillages and Sustainable Communities" for Gaia Trust, in which the ecological and communitarian themes were brought together.
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In 1991, Robert Gilman set out a definition of an ecovillage that became standard.
Findhorn Ecovillage has been awarded UN Habitat Best Practice designation from the United Nations Centre for Human Settlements (HABITAT), and regularly holds seminars of 'CIFAL Findhorn', a United Nations Institute for Training and Research (UNITAR), affiliated training centre for Northern Europe.
Documentary Film maker Dean Puckett, a resident of the Kew Bridge Ecovillage from its inception, documented the daily lives of its inhabitants of the village as it evolved over the year of its life.
Robert C. Gilman is a thinker on sustainability who, along with his late wife Diane Gilman, has researched and written about ecovillages.