It is unclear whether greenery influences everyone in the same way or, whether different types of natural environment have more or less effect. For instance, some research has shown a greater impact for a golf course than woodland. It is has also been shown that a well-designed urban space can have as much positive psychological impact as a natural space. This could make sense. For instance, if you think of some of the world's most popular urban spaces, such as the Campo in Siena - it does not have a single tree in sight. The activities that a space enables may actually emerge as taking top priority.
Above all, natural fabrics are beneficial to fellow planetery species. This may be on an ‘invisible’ level, with natural ecosystems supporting millions of different microbes, bacterias and Oxygen production. Or is may be on a tangible level, with woodland, wetlands, scrublands and the associated wildlife. Natural fabrics foster urban microclimates; facilitating comfort in both hot and cold conditions and help to regulate fluctuations of temperature – reducing the need for mechanical solutions and therefore carbon footprint.