<<10Principle 1: close cyclesProductUseBring back, dismantling, upcyclingTechnical nutrientsTechnical cycleProductionBiological cycleWaste = foodProductUseBio­degradableBiological nutrientsPlantsProductionFirst and foremost, the emphasis should be placed upon the distinction of biological from technical cycles then both cycles can be continuous. This means that it will be possible to upcycle products after use.

11>>Principle 2: use the sunSolar energyWater powerWind energyBio­energyThe sun is the basis for the provision of infinite energy. Today's fossil fuels are finite and have detrimental effects upon our environment. By using energy from the sun and other renewable measures for generating energy you generate positive energy with which you can leave behind a positive footprint.