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摘要

Since it was founded in 1910, the Boy Scouts of America has taught more than 110 million kids how to tie knots, pitch tents, and-according to the organization's Outdoor Code-"be conservation minded." Troops around the country collect recy-clables and e-waste, build trails, restore streams, plant trees, and learn to "leave no trace"during their outdoor expeditions."In wilderness areas," as the Boy Scouts'wilderness policy explains, "it is crucial to minimize human impact, particularly on fragile ecosystems."