| http://www.w3.org/ns/prov#value | - But I think it is widely recognised that these sports are not completely eco-friendly.'The cumulative effect of thousands of hikers or cyclists using the same trail, for example, can cause serious erosion, inhibit the growth of plants and disrupt animal nesting and hunting sites, while watersports can disrupt aquatic life, including birds, fish and cetaceans such as dolphins, and destroy their hab
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