David Gordon
David Gordon ke moeletsi ea ikemetseng ea nang le semelo sa maano a ho fana ka liphallelo le ho fana ka liphallelo tsa tikoloho ho ts'ehetsa paballo ea machaba le litokelo tsa matsoalloa. O qalile tikolohong ea Pacific, mokena-lipakeng o sa etseng phaello moo a neng a tšehetsa baetapele ba tikoloho le matsoalloa a Russia, China le Alaska. Sebakeng sa Pacific Environment, o ile a thusa ho matlafatsa boiteko ba tšebelisano-'moho, ho tšela moeli ho sireletsa Leoatle la Bering le Leoatle la Okhotsk, ho baballa Western Gray Whale e kotsing ea ho timela ho nts'etsopele ea oli le khase le ho khothaletsa polokeho ea likepe.