Ko te huri haere o te waro i te pūnaha hauropi me te kōhauhau. Ka tukuna te hauhā (CO2) ki te kōhauhau e te nuinga o ngā kīrehe (te tangata anō hoki) hei kapo mā te tipu. Mā te tukanga ahotakakame e huri ai te hauhā hei pūngao mā te tipu. Ka kainga te tipu e te kaikame, ā, ka tukuna anō ai te hauhā ki te kōhauhau i roto i te tūtae o te kararehe, me te whakapopo. Mā te tahu hoki i ngā koranehe (te waro koranehe, te hinu me te kapuni) e tukuna ai te hauhā ki te kōhauhau.
The process of carbon passing through the ecosystem and atmosphere. Carbon dioxide (CO2) is released into the atmosphere by most animals and is taken in by plants. Through the process of photosynthesis, the carbon dioxide is converted to energy for the plant. The plant is eaten by consumers and again carbon dioxide is released into the atmosphere through their waste and decay. Carbon dioxide is also released into the atmosphere through the burning of fossil fuels such as coal, oil and natural gas.