Copenhagen, Denmark, has been widely recognized for its commitment to sustainable urban mobility. The city has invested heavily in public transportation, cycling infrastructure, and pedestrian-friendly design, resulting in a significant reduction in car usage and improved air quality.

Costa Rica has set an ambitious goal of transitioning its entire tourism sector to renewable energy sources by 2030. The country has already made significant progress in this area, with many hotels and tour operators adopting sustainable practices and using renewable energy sources.

Seychelles has been a pioneer in sustainable tourism, particularly in marine conservation. The country has established a network of marine protected areas, implemented strict fishing regulations, and promoted responsible tourism practices to protect its rich marine biodiversity.

All of the listed destinations - Barcelona, Cape Town, Kyoto, and Vancouver - have been recognized as "Green Destinations" for their commitment to sustainable tourism practices, including environmental conservation, social responsibility, and economic sustainability.

The World Tourism Organization (UNWTO) has developed the "Sustainable Tourism Criteria for Hotels" to guide hotels in implementing sustainable practices, such as energy efficiency, water conservation, waste management, and responsible sourcing.

Building campfires in designated areas is not a "Leave No Trace" principle. The principle emphasizes avoiding campfires altogether or using existing fire rings to minimize the impact on the environment.

Indonesia has developed a comprehensive ecotourism program that focuses on community-based tourism, the preservation of natural and cultural heritage, and the promotion of sustainable practices among tourism businesses.

All of the listed tourism businesses - Intrepid Travel, G Adventures, and Natural Habitat Adventures - have achieved CarbonNeutral® certification, demonstrating their commitment to reducing their carbon footprint and supporting climate action.

Bogota, Colombia, has implemented a highly successful bike-sharing program called "Ciclovia," which has led to a significant increase in cycling, reduced traffic congestion, and improved air quality in the city.

Spain has the highest number of Blue Flag certified beaches in the world, demonstrating its commitment to maintaining high standards of environmental quality and safety in its coastal areas.

Sustainable tourism development encompasses a holistic approach that includes minimizing resource consumption, protecting biodiversity and ecosystems, promoting cultural heritage and traditions, and ensuring the long-term viability of tourism destinations.

LEED (Leadership in Energy and Environmental Design) is not a GSTC-recognized standard. It is a green building certification program that focuses on the sustainability of buildings and construction, rather than specifically addressing tourism practices.

All of the listed initiatives are examples of sustainable transportation practices in the tourism sector, as they aim to reduce carbon emissions and promote environmentally friendly modes of transportation.

Kenya has been a pioneer in community-based tourism, with successful programs such as the Maasai Mara National Reserve, where local communities have taken an active role in managing tourism and sharing the benefits with their communities.

Airbnb is not a member of the Responsible Tourism Partnership. The RTP focuses on large-scale tourism businesses, while Airbnb is a peer-to-peer platform that connects individual hosts with travelers.