The announcement came after President Biden's worldwide climate envoy, former secretary of state John F. Kerry, traveled to China this week to meet with his counterparts ahead of a White House climate summit Thursday and Friday.
Kerry is in China for meetings with his counterparts until Saturday - the first visit by an official from the new U.S. administration.
"The United States and China are committed to cooperating with each other and with other countries to tackle the climate crisis", their joint statement said. From Shanghai, the former secretary of state flew to South Korea for talks.
"Responding to climate change is a common cause of all mankind and it should not become a geopolitical bargaining chip, a target for attacks on other countries or an excuse for trade barriers", the official Xinhua news agency cited Xi as saying in a video summit with the European leaders.More news: Iran offers upbeat assessment of progress in nuclear talks
Biden has invited 40 world leaders, including Chinese President Xi Jinping, to the April 22-23 summit.
The scheme is seen as a key part of the EU's Green Deal, an ambitious push to achieve carbon neutrality by 2050 and meet the targets of the Paris Climate Agreement.
It's unclear how much Kerry's China visit would promote US-China cooperation on climate issues.
"For a country with 1.4 billion people, these goals are not easily delivered".More news: Biden keeps USA refugee cap same as set under Trump-era
When Kerry was still in Shanghai, Chinese Vice Foreign Minister Le Yucheng signalled that China is unlikely to make any new pledges at next week's summit. "I am afraid this is not very realistic".
China in recent years has taken over the mantle of global climate leadership left vacant when former USA president Donald Trump withdrew from the Paris agreement to address the catastrophic effects of global warming.
The United States and China will continue to discuss, both on the road to the 26th UN Climate Change Conference of the Parties (COP26) and beyond, concrete actions in the 2020s to reduce emissions aimed at keeping the Paris Agreement-aligned temperature limit within reach, read the statement.
The US and China will also develop long-term strategies to become carbon neutral, in time for the United Nations climate summit in Glasgow, UK in November.More news: Kremlin ponders next moves after being hit by US sanctions
If the United States refuses to work with China on climate because of other disagreements, "you're just killing yourself", Kerry told CNN before his trip to Shanghai.