I've joined the call for G20 leaders to take immediate and internationally co-ordinated action to address the deepening global health & economic crises caused by Covid-19. The funding needed for the response goes far beyond the current capacity of existing international institutions. See the specific requests in our letter published in Project Syndicate today. Many other members of Club de Madrid, Nizami Ganjavi International Center, and the Global Leadership Foundation have signed. The letter was co-ordinated by The Office of Gordon and Sarah Brown.