Sustainability: The ability of a cyclic system to maintain
equilibrium or support growth.
http://en.wikipedia.org/wiki/Sustainability
Net Zero Energy Building: The production of energy equal to
or greater than consumed.
http://en.wikipedia.org/wiki/Zero-energy_building
Green Building: Designing for environmental health and
energy efficiency.
http://en.wikipedia.org/wiki/Green_building
Carbon Footprint: Your net contribution to the carbon cycle.
http://en.wikipedia.org/wiki/Carbon_footprint
Ecological Footprint: Your demand on the carbon cycle, nitrogen cycle, water cycle and
non renewable resources.
http://en.wikipedia.org/wiki/Ecological_footprint
http://www.footprintcalculator.org/
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