Landscape architecture includes elements of landscape engineering, landscape assessment, landscape planning, landscape management, landscape detailing and landscape design.  Landscape architects and designers must take into account the specifics of soil types, drainage, climate and other issues during the analysis, planning, design, implementation and management of landscaping projects.  The huge amount of waste generated, water used, and energy consumed to develop and maintain landscaping can have a substantial impact on our environment.  By incorporating environmentally friendly practices into landscaping design and architecture, the impact on the earth can be greatly reduced.  Landscape architects and designers listed in this section are dedicated to environmentally responsible landscape design.