In environmental education there is a rule known as the three Rs that synthesizes a set of guidelines to assist in the fight for environmental care: reduce consumption to the minimum necessary, reuse what still can be used and recycled turning waste into a resource for a new life.
To these three Rs, new concepts have been added: the revaluation (of resources), redistribution (of income) and (improve) relations. Then another three Rs were added: resilience (adaptability), reassessment (scale value) and restructuring (of the economy).