Energy efficient design requires different types of buildings in each different climate. This makes it essential for architects, builders, contractors, and homeowners to understand the resources of their unique local climate and how it influences the performance of their buildings. Climate Consultant 4.0 has been created to achieve this. It adds a number of new features, including new graphic screens and an interactive tutorial to explain the psychrometric chart. It also automatically creates a list of Design Guidelines based on the attributes of each unique climate and it then displays a sketch illustrating how each Guideline applies. Thus, Climate Consultant 4.0 helps people who are designing, constructing, and maintaining buildings anywhere in the world understand the resources of their local climate and how it impacts their building's performance.