"That is why we're having the Climate Action Summit in San Francisco, September 2018".
Brown is expected to make his announcement on Thursday evening in a video conference address to a global citizen festival in Hamburg, German.
Since President Trump declared that the US intends to withdraw from the Paris Climate Agreement, Brown has been using his status as the governor of the most populous state - and world's sixth-largest economy - to negotiate directly with foreign governments, including China and Canada, on climate policies.
Speaking to over 12,000 environmental activists in Hamburg, California Gov.
Cruz talks veterans' support, avoids health care questions
Protesters at the rally in front of the Renaissance Austin Hotel admitted they had little chance to get Cruz to back down. Outside the radio station several protesters attempted to meet with Cruz, however the Senator did not speak with them.
"President Trump is trying to get out of the Paris Agreement, but he doesn't speak for the rest of America".
Whether Brown and his American cohorts, including Los Angeles Mayor Eric Garcetti and former New York Mayor Michael Bloomberg, will ultimately be able to take sufficient action to curb global warming is uncertain, but they are already succeeding in undercutting the authority of the White House to set the US agenda on climate. Shortly after Trump's announcement, Brown traveled to China, where he signed an agreement to work together on reducing emissions, warning that "disaster still looms" unless governments around the world take urgent action.
"We need people that represent the whole world because this is about the whole world and the people who live here", said Brown, who has been building his alliance against cliamte change both within the United States and with other countries around the world. The governor has been an outspoken critic of Trump, who has called global warming a hoax and bashed the Paris agreement as a bad deal for the United States, while also seeking to protect the oil and gas industries from climate regulations. "California will resist because his effort is misguided". "It's not going to change climate change policy in America, and it's not going to change Donald Trump's mind". "I would even say this is an insane move".
Earlier this week, Brown joined the leaders of Baden-Württemberg, Catalonia and South Australia - all members of the Under2 Coalition - to urge the G20 to reaffirm its support for implementation of the Paris Agreement and to recognize the role of sub-national governments, states, regions and cities, in leading and delivering on climate action. At the state Capitol, he is in the middle of hard negotiations with the Democratic-dominated Legislature to extend the cap and trade system, which is seen as central to meeting the state's ambitious greenhouse-gas reduction goals.