It's time to zero-in on climate change.


The Global Climate Action Summit will demonstrate the groundswell of innovative, ambitious climate action from leaders around the world — and will highlight the economic and environmental transition already underway. In doing so, the Summit will encourage progress at a critical moment that will take place at the United Nations Climate Change Conference later that year.

Governor Brown and the State of California invite you to participate in the Global Climate Action Summit in San Francisco. We’re bringing together leaders from government, business, and the global community to inspire greater global ambition and zero-in on the most pressing and universal issue of our time, climate change.


Come join us – entrepreneurs, singers, musicians, mathematicians, professors, students – we need people that represent the whole world because this is about the whole world and the people who live here … It’s time to act, it’s time to join together, and that’s why at this Climate Action Summit, we’re going to get it done.

–Governor Edmund G. Brown Jr., Message to the Global Citizen Festival in Hamburg, Germany, July 2017



It's up to all of us. Leaders form government, business, industry and the global community to inspire greater global ambition and zero-in on climate change.



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Michael Bloomberg

U.N. Secretary General’s Special Envoy for Cities and Climate Change,


Patricia Espinosa

Executive Secretary of the U.N. Framework Convention on Climate Change,

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Anand Mahindra

Chair of the Mahindra Group,