The seven and a half million people on the Earth are unevenly clustered in favorable climates and soils, favorable governments, traditional places. Of the 70 percent of the world that is inhabitable, people have dramatically altered 3% with urban areas and 10% with agriculture. Most of the world’s people have cellular telephones and already one third have internet access. People travel and transport cargo by a variety of means, based partly on historical infrastructures and accessibility. Navigable rivers are used in relatively level areas and dominant in the Amazon where the landforms do not favor highways or railroads. Ports and shipping lanes also occur. Railroads reflect historical colonial, “extractive” economies in Africa and centrally planned economies in central Asia. Roads exist throughout the inhabitable world except deserts and the Amazon. Pipelines create networks in Europe and parts of North America, but appear more extractive elsewhere. Critical numbers of people are needed for different retail amenities, and people aggregate in populated areas for these amenities. People live in single- or multiple-family dwellings, which take up different land covers.