Nyorai kupfuurira kweiyi ndima - Nepo pasina matanho aripo ekudzivirira tsaona dzose, kudururwa kukuru kwakawanda kwepetrochemical kwakapfuura, kwakadai seExxon Valdez kana kuti Deepwater Horizon
kudonha kwemafuta, kwakakonzera kunzwa kwokunetseka kuri kukura mukati meindasitiri.