(Sacramento)  AP -California has set a goal of phasing out electricity produced by fossil fuels by 2045 under legislation signed Monday by Gov. Jerry Brown, who said the policy should serve as a model for other states and nations.

Brown, who has positioned California as a global leader in the effort to reduce greenhouse gas emissions, approved the measure as he prepares to host a summit in San Francisco of climate change leaders from around the world starting Wednesday.

The new law, along with an executive order Brown signed directing California to take as much carbon dioxide out of the air as it emits, represent the latest in a string of ambitious environmental initiatives as California seeks to fill a void left by President Donald Trump's decision to withdraw from the Paris climate accord and his efforts to boost the coal industry.