Green Hierachy

• Reduce : eg. To reduce the amount of packaging used for commodities 
• Reuse : employing old buildings or components for new application with minimal alteration 
• Recycle : conversion of the previous of the material into some other form , when reuse is not possibility 
• Recover : donote energy recovery from materials with limited recycling options . 
• Dispose should only considered when all of the above options have been excluded .