President Biden and Vice President Harris will open the inaugural session of the Summit.
President Biden is set to announce new goals for reducing greenhouse gas emissions by more than 50% from 2005 levels by 2030 on Thursday as part of the administration's plan to combat climate change. Climate change has been a major area of focus for Biden.
Officials said Biden and his team arrived at the final number in a meeting at the White House on Wednesday morning.More news: Oxford researchers launch human challenge trial to study Covid reinfection
Last week, United States climate envoy John Kerry travelled to Shanghai to meet with his Chinese counterpart in the first high-level visit to China by a Biden administration official.
The move comes as Biden convenes a virtual summit of more than three dozen world leaders, aimed at ratcheting up global climate ambitions and re-establishing the United States as a leader in the effort to slow the planet's warming.
Washington and Beijing's pledge to cooperate comes amid acrimony over accusations about China's policies in Hong Kong and its treatment of Uyghurs in its northwestern Xinjiang region - criticisms Beijing rejects as interference in its domestic affairs. The pair released a joint statement over the weekend, saying their two countries "are committed to cooperating with each other" and will take "enhanced climate actions that raise ambition in the 2020s".More news: PM to front media after new positive border worker case confirmed
But the two countries, the world's two biggest greenhouse gas emitters, have rediscovered a common interest in battling climate change.
Xi has pledged to make his nation carbon neutral by 2060 and adhere to the 2015 Paris Agreement on climate change, which Biden's predecessor Donald Trump abandoned.
Meanwhile Biden is expected this week to announce new U.S. targets on reducing carbon emissions as part of the summit amid mounting global alarm over record-breaking temperatures and increasingly frequent natural disasters.More news: Signs discouraging travel into B.C. to be posted along Alberta border
During their video conversation on Friday, Chinese Vice Premier Han Zheng told US climate envoy John Kerry that Beijing "welcomes the USA return" to the Paris accord.