The summit is an opportunity to showcase climate action but also a moment to spur more action or as the GCAS theme puts it to Take Ambition to the Next Level.
The U.S. Climate Alliance, which involves 17 governors, announced Thursday that it would commit to several actions, including making clean energy cheaper for consumers and promoting vehicles and transit that rely on renewable energy. It was unclear what specific actions might be taken before the summit ends Friday.
The bill and a number of others were signed this week in tandem with the Global Climate Action Summit now taking place in San Francisco.
Frances Seymour, a senior fellow at the World Resources Institute, a Washington-based think tank, said the gathering marked the start of more united climate action by government bodies and agencies beyond the US national government, with disparate alliances and initiatives now "gelling".
Brown has pushed for an aggressive environmental policy in his state, including signing a bill that calls for generating 100 percent of the state's electricity from carbon-free sources by 2045 and issuing an executive order requiring California to completely eliminate net emissions across the state's economy by the same year.
"We have shut this summit down from the outside", demonstrator Dallas Goldtooth of the Indigenous Environmental Network told the crowd.
Trump said the worldwide agreement was unfair to the United States and would hurt the economy.
"The president likes to talk about what a great country we are", Brainard said.
Mayor of Paris Anne Hidalgo waves after speaking during the opening plenary of the Global Action Climate Summit Thursday, Sept. 13, 2018, in San Francisco.
"I'm a graduate student and so I think it's really important as well to have students and young folks involved", she said.
Unlike that patchwork approach, federal policies like the Clean Power Plan would have cut emissions in all 50 states.
Nuttall, however, argues that this more than just about U.S. businesses and local and state governments stepping in and reiterating their commitment to achieving the Paris Agreement goals and climate plans and targets pledged by the Obama administration under the climate deal.
The remarks echoed a pledge the Governor made almost two years ago at a scientific gathering in the face of potential cuts to federal satellite and climate monitoring programs under President Donald Trump, who is skeptical of climate science.
That may be why Gov.
"If the overall movement of the world is up and determined to address the Paris Agreement, then those governments that are less enthusiastic are likely to find themselves on the wrong side of history, and likely to find themselves on the wrong side of what the planet and the people living on it actually need- which is a low carbon/de-carbonised world with all kinds of new job opportunities and all kind of new sectors".
"You don't snap your fingers and say now it's done", Brown said.
The preview coincides with what has been dubbed "the biggest moment for climate action since the Paris Agreement, ' to highlight progress being made around the five GCAS 'challenge areas": Healthy Energy Systems, Inclusive Economic Growth, Land and Ocean Stewardship, Sustainable Communities and Transformative Investments.