sentences:  This use of the term "green infrastructure" to refer to urban "green" BMPs contributes to the overall health of natural ecosystems, even though it is not central to the larger concept.However, it is apparent that the term “blue-green infrastructure” is applied in an urban context and places a greater emphasis on the management of stormwater as an integral part of creating a sustainable, multifunctional urban environment.At the building level, the term "blue-green architecture" is used, which implements the same principles on a smaller scale.