Zipangizo zowola sizimakhudza kwambiri chilengedwe, zimakwaniritsa chitukuko chokhazikika, zimatha kuthetsa bwino vuto la chilengedwe ndi mavuto ena, kotero kufunikira kukukulirakulira, zinthu zopakira zowola zimagwiritsidwa ntchito kwambiri m'mbali zonse za moyo. Chifukwa chakuti zinthu zambiri zomwe zimagwiritsidwa ntchito muzopakira ndi zachilengedwe ndipo zimatha kuwonongeka popanda kuwonjezera chothandizira, njirazi zimagwiritsidwa ntchito kwambiri mumakampani azakudya ndi zakumwa. Makampani ambiri ndi maboma achitapo kanthu kuti achepetse zinyalala za zinthu ndi kuwononga chilengedwe. Makampani monga Unilever ndi P & G alonjeza kusintha njira zopakira zachilengedwe ndikuchepetsa kuwonongeka kwa chilengedwe (makamaka mpweya woipa) ndi 50%, chomwe ndi chimodzi mwa zifukwa zomwe zikuyendetsa kugwiritsa ntchito zopakira zowola m'mafakitale osiyanasiyana. Zinthu zatsopano zambiri, monga njira zopakira zodziyimira pawokha komanso zanzeru m'makampani, zikukula mpaka kufika pa zinthu zomaliza.
Anthu ambiri odalirika akuyamba kupeza njira zosungira zinthu zokhazikika.
Anthu padziko lonse lapansi apitirira 7.2 biliyoni, ndipo opitilira 2.5 biliyoni ali ndi zaka zapakati pa 15-35. Amaika chilengedwe patsogolo kwambiri. Chifukwa cha kupita patsogolo kwa ukadaulo komanso kukula kwa chiwerengero cha anthu padziko lonse lapansi, mapulasitiki ndi mapepala amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. Zipangizo zopakira zinthu zomwe zimapezeka kuchokera kuzinthu zosiyanasiyana (makamaka mapulasitiki) zimapanga zinyalala zolimba, zomwe zimawononga kwambiri chilengedwe. Mayiko ambiri (makamaka mayiko otukuka) ali ndi malamulo okhwima ochepetsa zinyalala ndikulimbikitsa kugwiritsa ntchito zipangizo zopakira zinthu zomwe zimatha kuwonongeka.