Pedzisa mutsara unotevera: Pakutanga akadzidziswa kuva injiniya wemagetsi, Merkel akapedza makore gumi nemaviri achigadzira gadziriro dzeindasitiri nedzechiuto. Pashure pokuona kuparadzwa kwakatevera
1989 Exxon Valdez oil spill, zvisinei, akagumisa kuti zvinetso zvenyika yose zvakanga zvava zvokukurumidzira kwazvo zvokuti zvinoda chiito chokukurumidza. Somuuyo akarega basa rake ndokutanga basa idzva somumiriri wezvakatipoteredza nomutauriri.