B

Baseline studyAssessment of the present situation in order to measure changes in that environment over time.
Best practice
Involves seeking excellence, keeping in touch with innovations, avoiding waste and focussing on outcomes which are in the community interest. It involves managing change and continual improvement and in this way it encompasses all levels of an organization.
Bio centric

Focuses on living things (different species and genetic variability) as the central point to the development of value systems as opposed to anthropocentrism 

which focuses on the human and the instrumental value of nature. See also Eco centric.

BiodiversityThe variety of different species and genetic variability among individuals within each species.
Biological diversityThe variety of all life forms, the different plants, animals and microorganisms, the genes they contain and the ecosystems they form. It is usually considered at three levels: genetic diversity, species diversity and ecosystem diversity.
Built environmentA reference to buildings, dwellings, structures, utilities, roads and services which enable people to live, work and play, circulate and communicate and fulfil a wide range of functions. The built environment of a place reveals its historical and spatial development, its past and present, and something of its social structure and conflicts.