As cities, states and companies take a leadership role tackling climate change following US President Donald Trump’s decision to withdraw from the Paris climate agreement, California Gov. Jerry Brown beamed into the Global Citizen Festival Hamburg to announce a 2018 summit on climate action to be held in California.

Before throwing to Gov. Brown, the former head of the UNFCCC Christiana Figueres called on Global Citizens to show their support for “MORE climate action. For FASTER climate action. For a BETTER world for everybody.”

In his message, Gov. Brown announced that California is hosting a summit to address the critical issue of climate change.

“It’s up to you and it’s up to me and tens of millions of other people to get it together to roll back the forces of carbonization and join together to combat the existential threat of climate change,” Gov Brown said. “That’s why we’re having the ‘Climate Action Summit’ in San Francisco in September 2018. 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 that live here. We have to do something and we can do it.”

He followed by saying “President Trump is trying to get out of the Paris agreement but he doesn’t speak for the rest of America.”

Brown went on say that “we in California and in states all across America believe 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.”