Three principles that truly describe being green are "Reduce" "Reuse" and "Recycle" which apply also to individuals where one uses only what's necessary, avoids consuming excessively, ceases the consumption if it's not a necessity and reuses or recycles when possible.
The three R's - reduce, reuse and recycle - all help to cut down on the amount of waste we throw away. They conserve natural resources, landfill space, and energy. Don't wait, just an opportunity to help the world, survived from the changes, but the opportunity to take care of this planet, have regularly.