La Niña is a part of the El Niño southern oscillation, a climate fluctuation that slowly sloshes vast bodies of water and heat between different ocean basins and disrupts weather patterns around the world.

The world warmed to yet another monthly heat record in January, leaving scientists shocked. It was hoped that the La Niña weather which began in the same month would get 2025 off to a cooler start than 2023 and 2024,

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

"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.

January 2025 breaks heat records, with temperatures soaring above the previous year. Has the 2°C climate target become unattainable?

Scientists hoped the emergence of La Nina will slow down the record breaking global warming, but last month broke the record by 0.1C.

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 slightly less hot year.