Biden has invited 40 world leaders to participate in the Leaders Summit on Climate, which will be held virtually on Thursday and Friday.
Using Earth Day to relaunch the U.S.as a leader in the global effort to combat climate change, President Joe Biden is set to host world leaders for a virtual climate summit this week and is expected to announce a new goal for the USA to reduce its greenhouse gas emissions - reportedly by perhaps as much as 50% by 2030.
Xi will give an "important speech" at the meeting, said the Chinese foreign ministry, days after a trip to Shanghai by U.S. climate envoy John Kerry - the first official from Biden's administration to visit China.
But the two countries, the world's two biggest greenhouse gas emitters, have rediscovered a common interest in battling climate change.
The move comes as Biden convenes a virtual summit of more than three dozen world leaders, aimed at ratcheting up worldwide climate ambitions and re-establishing the United States as a leader in the effort to slow the planet's warming.
Biden and his special envoy for climate John Kerry have been working to push other major polluters like China, India, and members of the European Union to set similarly ambitious goals, many of which will be represented at the summit.
The US president has rejoined the 2015 Paris accord, which Kerry negotiated as secretary of state and which committed nations to take action to keep temperature rises at no more than two degrees Celsius (3.6 Fahrenheit) above pre-industrial levels.
The talks also marked a resumption of climate dialogue halted during the Donald Trump administration, who withdrew from the Paris agreement.
The Washington Post was the first to report the US target.
US President Joe Biden will pledge to cut greenhouse gas emissions at least in half by 2030, The Washington Post reported citing two people familiar with the matter.