Sharing knowledge: As more people climb Everest, the mountain itself hasn’t become easier, but the equipment and knowledge about the best routes have improved.
Rhannu gwybodaeth: Wrth i fwy o bobl ddringo Everest, nid yw'r mynydd ei hun wedi dod yn haws, ond mae'r offer a'r wybodaeth am y llwybrau gorau wedi gwella.