The US embassy in Beijing confirmed on Tuesday the resignation of David Rank, who was the chargé d'affaires at the mission, which is now waiting the arrival of a new ambassador. "The Paris Climate Accord is simply the latest example of Washington entering into an agreement that disadvantages the United States to the exclusive benefit of other countries, leaving American workers - who I love - and taxpayers to absorb the cost in terms of lost jobs, lower wages, shuttered factories, and vastly diminished economic production", he had said.
The decision, which Mr Trump said would protect the USA economy, was met with much rancour worldwide.
Rank was serving in China when President Xi Jinping and then-US President Barrack Obama jointly declared their commitment to the Paris agreement, which has been signed by 195 countries and ratified by 147.
Rank was due to be replaced by former Iowa Gov. Terry Branstad as US ambassador after his confirmation in May.
He told The Associated Press on the sidelines of a clean energy conference in Beijing on Tuesday that China, Europe and USA state governors will for now fill the gap left by the federal government's move to abdicate leadership on the issue.
A few hours later, Lewis Lukens, the acting ambassador of the U.S. Embassy in Britain, used the U.S. Embassy Twitter account to say Khan had shown "strong leadership" in responding to the London Bridge terrorist attack.
The official said Chacon had tendered his resignation when Trump was inaugurated on January 20, along with all presidential appointees, who serve at the pleasure of the president and secretary of state. Rank's resignation was first reported by John Pomfret, editor-at-large for the website, SupChina.
U.S. Secretary of Energy Rick Perry, who was at the same conference, declined to take questions from reporters.
Chacon could not immediately be reached for comment.
Jonathan Fritz, the embassy's economics councilor, would serve as chargé in his place, Richey-Allen said. Trump announced the withdrawal of the US from the climate treaty Thursday, which was negotiated in 2015.
Previously, he had been a political counselor at the U.S. Embassy in Kabul, director of the State Department's Office of Afghanistan Affairs.
He said now, there are 147 country ratifiers to the Paris Agreement on Climate Change, which entered into force past year on November 7, 2016, including the USA.