There are many ways to save energy in residential and commercial buildings. There are products that use less energy for lighting, heating and cooling; materials that better insulate and seal building envelopes; and architectural and engineering designs that lower utility bills through efficient use of space and renewable energy.
Buyers of compact discs, computer software, recorded movies and designer clothing can rest assured they got what they paid for if Tracer Detection Technology Corp. is successful in marketing its new counterfeit-deterrence system.