In general, a climber makes relatively little noise and (in theory) leaves nothing behind except tracks in the snow and minor scratches on rocks.
Conquering Mt. Everest and Trash
CLEANING TOURIST LITTER ON MOUNT KENYA
Trash Dumped on Popular Peak : McKinley's Mountainous Problem: Climbers' Litter - Los Angeles Times
https://www.thebmc.co.uk/green-frida...ns-litter-free
Where ever there are climbers there is litter. It's a huge problem.