Kajima protects existing healthy and rich environments. Kajima values the association between man and nature, and uses its technology to create new comfortable and pleasant environments. By studying how to assess the effects of various environments in the sea, rivers, soil and air on living things such as micro-organisms, micro-algae, fish and shellfish, insects and plants, Kajima attempts to harmonize its construction and engineering technologies with the living environments of such plants and animals. Kajima is also assessing the hydraulic environment of coastal areas.