American endurance athlete Tyler Andrews’ record-breaking Everest ascent has triggered a fierce debate in the climbing world, with critics questioning whether his 9-hour, 55-minute summit push from Base Camp benefited from an earlier "route recce".

El atleta norteamericano superó la marca vigente desde 2003 tras completar el ascenso en condiciones extremas, con apoyo de oxígeno suplementario y asistencia logística parcial

American endurance athlete Tyler Andrews’ record-breaking Everest ascent has triggered a fierce debate in the climbing world, with critics questioning whether his 9-hour,…