Dee ihe ndị ọzọ dị na paragraf a - Na March 24, 1989, ụgbọ mmiri na-ebu mmanụ bụ́ Exxon Valdez kwụsịrị n'ụsọ oké osimiri Bligh Reef, na-awụfu nde galọn iri na otu mmanụ n'ime mmiri nke Prince William Sound. Mmanụ ahụ a wụfuru n'ụgbọ mmiri Exxon Valdez
bụ nke kasị ukwuu n'akụkọ ihe mere eme nke United States.