N'ọgbakọ a, a tụlere isiokwu dị iche iche gụnyere ndụ mmiri, nchedo akụnụba, mgbanwe gburugburu ebe obibi, ọdachi ndị metụtara okike, na mgbanwe ndu. Nzukọ a rụpụtara Nkwupụta na gburugburu ebe obibi mmadụ (Nkwupụta Stockholm) na nguzobe nke ụlọ ọrụ na-ahụ maka gburugburu ebe obibi, nke e mechara kpọọ United Nations Environment Programme (UNEP). E guzobere isi ụlọ ọrụ UNEP na Nairobi na Kenya na 300, gụnyere ndị ọkachamara na mpaghara dị iche iche, yana nlekota afọ ise nke ihe karịrị US $ 100 nde. N'oge ahụ, US $ 40 nde nyere aka site na UNEP, gụnyere ndị ọrụ afọ ofufo na-eme ka mmekọrịta dị n'etiti ndị ọrụ afọ ofufo na gburugburu ebe obibi. N'etiti United Nations Environment Programme na ndị ọzọ na-akwado usoro ihe omume gburugburu ebe obibi na gburugburu ebe obibi, ihe karịrị US $ 200 nde ka e mepụtara site na United Nations Environmental Fund.
Nde $40