Final answer:
The World Travel & Tourism Council is the private sector organization dedicated to promoting tourism interests globally, distinct from entities like the WTO.
Step-by-step explanation:
The private sector, membership organization that attempts to promote the interests of tourism on a global basis is the World Travel & Tourism Council (WTTC). The WTTC is known for its role in advocating for the travel and tourism industry, providing research on the economic and social impact of tourism. It works to influence governments and international agencies to invest in the sector, foster sustainable growth, and create jobs. Unlike the World Trade Organization (WTO), which is an intergovernmental entity focused on international trade, the WTTC is a private organization specifically aimed at travel and tourism interests.