Biden, who has said fighting global warming is among his highest priorities, had the United States rejoin the Paris climate accord in the first hours of his presidency, undoing the US withdrawal ordered by his predecessor Donald Trump.
Major emitters of greenhouse gases are preparing for the next UN climate summit taking place in Glasgow, UK, in November.
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The summit aims to relaunch global efforts to keep rising global temperatures to below 1.5 degrees Celsius, as agreed in the Paris accord.
According to the US-China statement, the two countries would enhance "their respective actions and [cooperate] in multilateral processes, including the United Nations Framework Convention on Climate Change and the Paris Agreement".
It said both countries were "firmly committed to working together and with other Parties to strengthen implementation of the Paris Agreement".
AP/ABC
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