The European climate service Copernicus says the world warmed to yet another monthly heat record in January, despite an abnormally chilly United States, a cooling La Nina and predictions of a

The past two years have seen month after month become the planet's hottest recorded. Climate scientists say human-produced greenhouse gases account for the majority of the warming.

"January 2025 is another surprising month, continuing the record temperatures observed throughout the last two years, despite the development of La Niña conditions in the tropical Pacific and their temporary cooling effect on global temperatures," said Samantha Burgess of the Copernicus Climate Change Service.