This summer, while most of us were frolicking on the trails, rafting on the river or lounging in a hammock, Shari Edelson was stationed at a trailhead on Colorado’s Mount Elbert talking to people ...

A crusade to combat the proliferation of poop in Colorado’s backcountry entered a new frontier this week with the creation of a “Clean 14” initiative focusing on the state’s iconic 14,000-foot peaks.

Climbers ascending Mount Everest will be expected to collect their poop in doggy bags and carry their waste back to base camp, according to new regulations from local officials as they attempt to ...