Donald Trump said on Wednesday that if elected he would renege on a $3 billion US pledge to a global fund meant to help developing countries cut emissions and adapt to climate change.
The pledge was announced by Vice President Kamala Harris this month at the COP28 climate summit, although it is subject to the politically divided US Congress, which must authorise the release of funds.
Trump, who has made attacking the administration of President Joe Biden's investments in renewable energy a core part of his campaign message, said he was opposed to what he called "climate reparations" to other countries.
A campaign aide confirmed that Trump was referring to the $3 billion US pledge to the Green Climate Fund.
"When I am back in office all climate reparation payments will be cancelled immediately," Trump said at a campaign event in Coralville, Iowa, adding he would seek to "claw back" any payments made by the Biden administration.
Trump leads his rivals for the Republican nomination by nearly 50 percentage points in national opinion polls, meaning he is likely to face Biden, the presumptive Democratic Party nominee, in the November 2024 election.
President Donald Trump's administration has ordered its missions abroad to stop scheduling new appointments for student visa applicants as the State Department prepares to expand social media vetting of foreign students.
Ukrainian President Volodymyr Zelenskyy landed in Berlin on Wednesday for talks with German Chancellor Friedrich Merz, his office said, part of a diplomatic drive to end the war in Ukraine, Europe's deadliest since World War Two.
Germany's foreign minister, Johann Wadephul, threatened unspecified measures against Israel on Tuesday and said Berlin would not export weapons used to break humanitarian law.
An explosion at a chemical plant in the eastern Chinese province of Shandong killed at least five people, with 19 injured and six missing, the state-run Xinhua agency said late on Tuesday.
The work of a US-backed private humanitarian organisation tasked with distributing aid in Gaza is a distraction from what is needed, such as the opening of crossing points, a UN spokesperson said on Tuesday.