The IPU facilitates parliamentary diplomacy and empowers parliaments and parliamentarians to promote peace, democracy and sustainable development around the world.
Nearly every country in the world has some form of parliament. Parliamentary systems fall into two categories: bicameral and unicameral. Out of 190 national parliaments in the world, 78 are bicameral (156 chambers) and 112 are unicameral, making a total of 268 chambers of parliament with some 44,000 members of parliament. IPU membership is made up of 180 national parliaments
The International Court of Justice (ICJ) was constituted under the United Nations Charter to help nations settle disputes peacefully in accordance with international law.
Throughout the year, the IPU and its Members organize many events for parliamentarians to exchange good practices, acquire the latest information and identify avenues for action.
The IPU has been collecting data on parliaments since its inception in 1889, including information on women’s participation in politics since 1945. In this section, discover the IPU's knowledge bank for and about parliaments.
The IPU and the parliament of Costa Rica will host a seminar for Latin American and Caribbean parliaments. The event aims to foster dialogue on climate action and sustainable development, and the role of parliaments in aligning national policies with global agendas. It will assess progress in implementing the 2030 Agenda and Paris Agreement and seek ways to advance climate resilience and sustainability in the region. The seminar will empower parliaments to engage more effectively in national discussions on sustainable development and climate change and prepare them for important global events like the 2023 SDG Summit and COP28.
Find out more about the IPU’s campaign to mobilize parliaments to act on the climate emergency.