Former President Bill Clinton is in Miami Beach on Saturday to address the U.S. Conference of Mayors annual meeting.
More than 250 mayors from cities with populations of 30,000 or more were attending the four-day conference at the Fountainebleau Miami Beach. The event began on Friday and ends on Monday.
New Orleans Mayor Mitch Landrieu, who replaced Oklahoma City Mayor Mick Cornett as conference president this weekend, said global warming was at the forefront of their delegates' discussions.
"There’s near unanimity in this conference that climate change is real and that humans contribute to it," Cornett said. "There may be a little bit of a disagreement about how actually to deal with it.
"If the federal government refuses to act or is just paralyzed, the cities themselves, through their mayors, are going to create a new national policy by the accumulation of our individual efforts."
Clinton is the speaker of the City Livability Luncheon. He is expected to focus on global warming and President Donald Trump's decision to withdraw from the Paris climate-change agreement.
Miami Beach Mayor Philip Levine, a Democrat who is considering a run for governor, took a group for a tour on Friday to show them how the city is using pumps to combat rising tides.