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Mayors pledge coordinated climate action ahead of UN conference in Brazil

The coalition aims to reduce urban heat impacts by expanding tree cover and improving infrastructure, with cities cutting emissions five times faster than the global average, organizers said.

  • On Monday, 300 mayors gathered in Rio de Janeiro to launch the Cool Cities Accelerator, a global coalition pledging coordinated action on rising heat.
  • Scientists report that 4,000,000,000 people experienced at least one extra month of extreme heat, with analyses linking heat to illness, deaths, crop losses, and system strains.
  • Mayors committed to practical steps such as planting trees, shade structures, cool-surface technology pilots, and heat-relief training, with support from The Rockefeller Foundation providing just under $1 million.
  • C40 members noted their cities have cut emissions five times faster than the global average, with London Mayor Sadiq Khan and Phoenix Mayor Kate Gallego contrasting city progress to national governments moving backward.
  • Despite confirmations, organizers reported that 132 countries had secured accommodation, while 49 still searched just days before COP30, scheduled for November 10 to 21, 2025.
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Mayors pledge coordinated climate action ahead of UN conference in Brazil

Three hundred mayors have gathered in Rio de Janeiro to pledge coordinated climate action in their cities.

·United States
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Further to its leading role as a national institution with consultative status with the Economic and Social Council of the United Nations (ECOSOC), accredited to the United Nations Framework Convention on Climate Change (UNFCCC); and confirming the position of Saudi experts and national best practices emanating from the Kingdom ' s Vision 2030 in supporting global efforts towards sustainability and green transformation, the Saudi Green Buil…

·Mecca, Saudi Arabia
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At the C40 World Summit of Mayors, which opened this Monday in Rio de Janeiro, the Secretary-General of the United Nations, António Guterres, called for more ambitious and coordinated climate action, stressing that "continuing to invest in fossil fuels is a dead end." With COP30 approaching, the UN leader insisted that it must […]

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Winnipeg Free Press broke the news in Winnipeg, Canada on Monday, November 3, 2025.
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