Such incentives as price discounts for consumers who bring their own containers and rebates for container returns can help encourage source reduction and recycling. Examples include limiting the use of off-road vehicles on sand dunes, prohibiting hiking in certain areas, and ensuring that boaters do not drop anchor above coral formations or delicate aquatic fauna. One technique to limit the number of visitors to an area is to institute a reservation or permit system. Another technique is to raise user fees. Such restrictions help ensure that the natural environment is not degraded.
Forest fires can destroy wildlife habitats and also result in significant air emissions.
Liquid fuel-burning camping stoves are a practical alternative. To reduce the littering problem around Mount Everest, the Nepalese Department of Tourism requires tour guides to account for every item carried to the region. Returning groups are inspected and national park guards can fine hikers heavily for missing items. Recreational Vehicles and Boats . The proper management of these wastes and materials can reduce the potential impacts of these vehicles.