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UN Climate Change Newsroom

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These pages and sections capture news of climate change and stories about the groundswell of climate action by governments, companies, cities, the UN and civil society around the globe. To provide feedback, email us at press@unfccc.int Photo©Naziha Mestaoui

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Since cities and urban areas hold most of the world's population and contribute to 70 percent of the world's carbon dioxide emissions, they are key contributors to any global success at COP21.

Read op-ed by Anne Hidalgo and Michael R. Bloomberg

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