WASHINGTON/BRUSSELS--The United States formally exited the Paris Agreement on Wednesday, fulfilling an old promise by President Donald Trump to withdraw the world's second-largest greenhouse gas emitter from the global pact to fight climate change.
But the outcome of the tight U.S. election contest will determine for how long. Trump's Democratic rival, Joe Biden, has promised to rejoin the agreement if elected.
"The U.S. withdrawal will leave a gap in our regime, and the global efforts to achieve the goals and ambitions of the Paris Agreement," Patricia Espinosa, executive secretary of the U.N. Framework Convention on Climate Change (UNFCCC), told Reuters.
The United States still remains a party to the UNFCCC and Espinosa said the body will be "ready to assist the U.S. in any effort in order to rejoin the Paris Agreement."
Trump first announced his intention to withdraw the United States from the pact in June 2017, arguing it would undermine the U.S. economy. The administration formally served notice to the United Nations one year ago on Nov. 4, 2019. The departure makes the United States the only country of 197 signatories to have withdrawn from the agreement struck in 2015.
The UNFCCC, Britain, France, Chile and Italy said in a joint statement that they "note with regret" the U.S. withdrawal. "We remain committed to working with all U.S. stakeholders and partners around the world to accelerate climate action," the statement said.
"If climate deniers keep control of the White House and Congress, delivering a climate-safe planet will be more challenging," said Laurence Tubiana, a former French diplomat instrumental in brokering the Paris accord, who now heads the non-profit European Climate Foundation.
Calling the withdrawal a "lost opportunity", Tanguy Gahouma-Bekale, chair of the African Group of Negotiators in global climate talks, said it would also create a shortfall in climate finances. He pointed to an Obama-era pledge to contribute $3 billion to a fund to help vulnerable countries tackle climate change, of which only $1 billion was delivered.
The Paris accord has the "universal support" of the rest of the international community, a spokeswoman for the European Union's executive Commission said. China, Japan and South Korea have all followed the EU in pledging to become carbon neutral, with the challenge now to translate long-term targets for 2050 - or, in China's case, for 2060 - into policies to slash emissions this decade.
A strong emissions-cutting pledge from the world's largest economy "would give a big shot of momentum" to those efforts, said Pete Betts, a former climate negotiator for the EU and Britain, who is now an associate fellow at London-based think-tank Chatham House. "The U.S. would put its diplomatic heft in efforts to persuade other major economies to raise their efforts," he said.
Countries representing 51% of the world's emissions have pledged to reduce their carbon emissions to net zero - with some going further and committing to zero out all greenhouse gases, research coalition Climate Action Tracker said. A net-zero pledge from the United States - which Biden says he would make, if elected - would see 63% of global emissions covered by such commitments.
