The United States has begun the formal process of withdrawing from the 2015 Paris climate agreement.
"President (Donald) Trump made the decision to withdraw from the Paris Agreement because of the unfair economic burden imposed on American workers, businesses, and taxpayers," US Secretary of State Mike Pompeo said.
"The US is proud of our record as a world leader in reducing all emissions, fostering resilience, growing our economy, and ensuring energy for our citizens. Ours is a realistic and pragmatic model."
Once it exits, the US will become the only country outside the accord.
The European Union, however, expressed disappointment at the move. Krista Mikkonen, minister of environment for current European Council president Finland, said it would mean "the rest of us must further increase our cooperation".
The notification sent to the UN of their intention to leave begins a one-year process that will be completed one day after the 2020 US presidential election.
China said on Friday President Xi Jinping would visit North Korea on a two-day trip from June 8, his first in nearly seven years as Beijing looks to reassert ties with Pyongyang, its only formal treaty ally.
The Iran-backed Hezbollah militia rejected a new ceasefire in Lebanon on Thursday and Israel said it would not withdraw troops from the country, undermining US President Donald Trump's efforts to halt fighting there to forge peace with Tehran.
Ukrainian President Volodymyr Zelenskyy has published an open letter to President Vladimir Putin on Thursday in which he proposed the two leaders meet to agree an end to more than four years of war, warning that Kyiv stood ready to fight on otherwise.
Russia and Uzbekistan have began the construction of a nuclear power plant in Uzbekistan on Thursday, the first of its kind in post-Soviet Central Asia, the Kremlin said, to help meet the growing regional demand for power.