Energy:

• Electricity
• Motor Fuel [diesel & bio-diesel]
• Natural Gas
• Solar
• Wind

Natural Resources: and natural assets called Eco-System Services

• Air Quality [Air Quality Index]  DEQ Study: Toxic Air Pollution near schools 
• Stormwater
• Tree Canopy
• Water

Sustainability indicators:

• Energy: Total consumption in MMBTUs 
• Energy: Ratio of Renewable Energy to Non-renewable Energy
• Groundwater: Water level in aquifer well
• Land Use: Percent of impervious surface
• Tree Canopy: Percent of total canopy cover