Joseph Stiglitz, Nobel Economics Prize Laureate and Chief Economist at the Roosevelt Institute, Ellen Johnson Sirleaf, Nobel Peace Prize Laureate and former President of the Republic of Liberia, Ban Ki-moon, former Secretary General of the United Nations, H. R. H. Prince Turki Al Faisal, Chairman of the King Faisal Foundation’s Centre for Research and Islamic Studies, H. H. Prince Faisal bin Farhan Al Saud, Saudi Arabia’s Minister of Foreign Affairs, Nouriel Roubini, CEO of Roubini Macro Associates, H. E. Fahad Al Mubarak, Saudi Arabia’s G20 Sherpa, H. E. Bandar Hajjar, President of the Islamic Development Bank, and Helle Thorning-Schmidt, former Prime Minister of Denmark and former CEO of Save the Children, were among the keynote speakers of the T20 Summit. This event was held between the 31st of October and the 1st of November 2020. It gathered over 70 world-leading thinkers, civil society organisations and international institutions, to exchange about climate and environment, women and youth, multilateralism, economic development and finance, sustainable resources, as well as technology and digitalisation. 

This summit was concluding the T20’s research, divided into 11 task forces. The Bridge Tank particularly took part in the work of the second of these task forces, focusing on climate change and environment.