What is the difference between a Global Parliamentary Assembly and a Parliamentary Assembly at the UN?

A Global Parliamentary Assembly and a Parliamentary Assembly at the UN are largely synonymous terms. Using the term of a Global Parliamentary Assembly stresses that the assembly should be linked to the work of all relevant intergovernmental organizations whereas a UN Parliamentary Assembly often is merely conceived as a first step in this direction by establishing it as a subsidiary body that is exclusively linked to the UN General Assembly. The term of a Global Peoples Assembly or Global Parliamentary Assembly is also used for a specific strategy towards a world parliament that is based on an intergovernmental treaty.