▁the ▁experience . ▁An at oli ▁Bou k ree v , ▁a ▁guide ▁who ▁felt ▁imp ug ned ▁by ▁Krak auer ' s ▁book , ▁co - author ed ▁a ▁re but tal ▁book ▁called ▁The ▁Cl imb . ▁The ▁dispute ▁spark ed ▁a ▁large ▁debate ▁within ▁the ▁clim bing ▁community . ▁ ▁In ▁May ▁ 2 0 0 4 , ▁Kent ▁Moore , ▁a ▁phys ic ist , ▁and ▁John ▁L . ▁Sem ple , ▁a ▁sur geon , ▁both ▁research ers ▁from ▁the ▁University ▁of ▁Toronto , ▁told ▁New ▁Scient ist ▁magazine ▁that ▁an ▁analysis ▁of ▁weather ▁conditions ▁on ▁that ▁day ▁suggested ▁that ▁fre ak ▁weather ▁caused ▁o xygen ▁levels ▁to ▁pl unge ▁approximately ▁ 1 4 %. ▁ ▁During ▁the ▁same ▁season , ▁clim ber ▁and ▁film maker ▁David ▁Bre as he ars ▁and ▁his ▁team ▁fil med ▁the ▁I MAX ▁feature ▁Ever est ▁on ▁the ▁mountain ▁( some ▁clim bing ▁scenes ▁were ▁later ▁re created ▁for ▁the ▁film ▁in ▁British ▁Columbia , ▁Canada ). ▁The ▁ 7 0   mm ▁I MAX ▁camera ▁was ▁spe cially ▁modified ▁to ▁be ▁light weight ▁enough ▁to ▁carry ▁up ▁the ▁mountain , ▁and ▁to ▁function ▁in ▁the ▁extreme ▁cold ▁with ▁the ▁use ▁of ▁particular ▁gre ases ▁on ▁the ▁mechanical ▁parts , ▁pl astic ▁bear ings ▁and ▁special ▁batter ies . ▁Production ▁was ▁halt ed ▁as ▁Bre as he ars ▁and ▁his ▁team ▁assist ed ▁the ▁surv iv ors ▁of ▁the ▁May ▁ 1 0 ▁dis aster , ▁but ▁the ▁team ▁eventually ▁reached ▁the