In an era punctuates by the challenges of global climate change, increasing energy demand and world wide economic recession for new green buildings construction and energy efficient renovations of existing infrastructure.

A green building is a structure that is environmentally responsible and resource efficient throughout its life-cycle.

Ecological design is a design that makes use of resources that come from the earth in such a way that they can be returned to the earth without causing harm in a cycle that echoes the natural systems of living things.