Reduce
Focus to improve efficiency. To establish practices that are capable to reduce the amount of waste we generate to help the environment.
Reuse
Practice to reuse materials without change whether for the original or a different application instead of throwing them away, or pass those unused materials on to others who could use them.
Recover
To set up ways to recover the energy values contained within the waste material.
Recycle
Many of the things we use every day can be recycled. Recycled items are put through a process that makes it possible to create new products out of the materials from the old ones.
Remanufacture
Focus to rebuild (re-engineered) to its original specifications.