A good understanding of the status quo is necessary for the success of efforts to develop and maintain nature in built space. Accordingly, this book conducts an environmental scan of the context of these efforts in global perspective. In particular, it develops and employs a novel environmental scanning model (ESM) designed to rigorously analyze the political, economic, social, technological, ecological, cultural and historical (PESTECH) contexts of initiatives to promote biodiversity in the built environment. The focus is on four specific substantive areas of environmental policy, namely forestry, water, food, and energy. The units of analysis roughly correspond with the major United Nations Environmental Programme (UNEP) regions of the world, including sub-Saharan Africa, Middle-East and North Africa, Asia and the Pacific, Western Europe, North America, and Latin America and the Caribbean.