Dee ihe na-aga n'ihu maka paragraf a - Kemgbe e guzobere ha, AFNSEP akwadowo ihe karịrị nnukwu ọdachi 125, gụnyere 1989 Exxon Valdez Oil Spill
, ọkụ ọgbụgba dị na California, ọdachi ụgbọelu Space Shuttle Columbia, ọtụtụ ajọ ifufe gụnyere Andrew na Katrina, na enyemaka ajọ ifufe na United States na mpaghara Pacific.