President Biden on Tuesday celebrated his record overseeing historic action to fight climate change and warned that the Republican trying to succeed him, Donald J. Trump, would unwind those accomplishments and condemn “future generations to a more dangerous world.”

The president delivered remarks to an adoring crowd at the Bloomberg Global Business Forum event during New York Climate Week that featured the actress Jane Fonda as well as Michael R. Bloomberg, the former mayor of New York.

Hours after addressing the United Nations General Assembly, Mr. Biden appeared at the Bloomberg event and took what amounted to a victory lap. He boasted that the 2022 Inflation Reduction Act, which is plowing more than $370 billion in tax rebates and subsidies into wind and solar energy, batteries and electric vehicles, was the largest climate investment “in the history of the world.”

The president credited the law with reopening shuttered factories and creating more than 300,000 jobs, but also with fundamentally changing the conversation about climate change from one of planetary doom to one of economic opportunity. He also made a point of linking his policies to Vice President Kamala Harris, the Democratic presidential nominee.

“Kamala and I have pursued an ambitious climate policy focused on growth,” Mr. Biden said. “This is a new formula on climate. Creating jobs and reducing pollution,” he said.

Ms. Harris has not detailed how she would address climate change. Her campaign website highlights the climate law and pledges to “unite Americans to tackle the climate crisis as she builds on this historic work.”

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