Warming threatens to upend ecosystems from Mongolia and the Amazon to crucial ocean currents in the North Atlantic.
The World Meteorological Organization said the world hit the record books, up 1.45° C. from pre-industrial times.
Rich nations have pledged less than 0.2% of the US$400 billion a year that developing countries need for losses and damage.
'Minutes to midnight': World hits 1.4° of warming as Dubai summit opens with new fund and report disputing a leader's credibility.
A handful of fossil fuel producing countries and industries show no interest in a strong, restrictive and legally binding instrument.
An internal audit found a US$31 million funding gap and deficiencies in U.N. Climate Change's Transparency Division.
Emissions must decrease 42% by 2030 to keep the 1.5° target alive. Instead, they're expected to rise 3% by then.
Nikki Haley has adopted Trump's hard line against U.N. participation but stopped short of calling for total withdrawal.
Heat-trapping gases keep collecting in the atmosphere at a record rate, the U.N. weather agency found.
The International Energy Agency expects a far greater role for solar, wind and other clean technologies, with 10 times as many electric cars on the road this decade.
In 2015, nations committed to hold global warming to no more than 2° Celsius above pre-industrial levels, or preferably 1.5°.
Despite the absences, the politics of catastrophe and climate inaction toward Earth's impaired health await the assembly's annual gathering of world leaders next week in New York.
In the recording, UAE officials anticipate a need to "minimize" attacks on the Gulf nation's human rights record when it hosts COP28 in Dubai later this year.
As climate litigation increases, the body of legal precedent grows, forming an increasingly well-defined field of law.
China's President Xi Jinping took an apparent swipe at mulilateral approaches to the climate crisis at the end of four days of high-level U.S.-China climate talks.
Some 1,475 out of 4,000+ governments and businesses had net zero emissions targets, but "integrity" measures are lacking.