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.
Washington DC sued US President Donald Trump's administration on Thursday over his deployment of National Guard troops in the capital city, a move likely to heighten tensions between the Republican president and the city's Democratic leaders.
Flags flew at half-mast in Lisbon on Thursday after at least 17 people were killed and 21 injured in a crash of a hillside funicular railway popular with tourists, while Portuguese authorities began investigating the cause of the accident.
Rescue workers on Thursday pulled bodies from the rubble of homes razed in Afghanistan's earthquakes as the confirmed death toll topped 2,200, while homeless survivors faced a bleak future with global aid agencies warning of dwindling resources.
Parts of Delhi and Indian Kashmir were flooded on Thursday after two rivers breached the danger mark following heavy rain in several northern areas, but weather officials forecast some respite from downpours.
North Korean leader Kim Jong Un said his country would "fully support" Russia's army as a "fraternal duty", and Russian President Vladimir Putin called the two countries' ties "special", state media KCNA reported on Thursday.