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NYC Mayor Zohran Mamdani hosts global mayors summit ahead of Trump meeting

City leaders backed a joint agenda on housing, climate and immigration, with organizers aiming for a policy framework ahead of Climate Week.

  • NYC Mayor Zohran Mamdani hosted the Urban 20 Mayors Summit in New York City on Sunday, gathering international leaders to address housing costs, immigration, and climate change.
  • In his opening address, Mamdani detailed three cornerstone pillars for Urban 20 2026: affordable housing and homelessness, climate action and urban resilience, and protecting immigrant communities and human mobility.
  • Jakarta Governor Pramono Anung Wibowo reported 2.5 percent inflation and US$10.5 billion in investment over six months, while pitching 37 urban development projects to global partners.
  • Mamdani noted conversations with the mayor of Helsinki regarding housing could help shape New York City's approach, stating in the city "too many people are priced out" and "we fundamentally believe that dignity should not be something that someone has to afford."
  • The summit concludes Sunday with participants ratifying a shared agreement, establishing a collaborative agenda for action ahead of Climate Week, which begins over the next several days.
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13 Articles

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More than thirty mayors and elected representatives of major cities met at the Urban 20 Summit in New York on 19 and 20 September to share their experiences and solutions to climate, migration and housing crises.

·Paris, France
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Lean Right

Pramono and Mamdani Meet to Discuss Transportation and the Jakarta-New York Bond

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Altay, President of UCLG and COP31 Cities and Local Governments Ambassador, invited municipalities from around the world to COP31 at the Urban 20 summit in New York. Stating that cities are the real force in taking the first step during crises, Altay invited mayors to COP31 in Antalya in November.

Jakarta Governor Pramono Anung met with the Mayor of New York to discuss traffic congestion solutions, the Giant Sea Wall, and support for the issuance of Jakarta Bonds for infrastructure.

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NBC New York broke the news in New York, United States on Sunday, September 20, 2026.
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