Last month was the world's warmest February in modern times, the EU's climate service says, extending the run of monthly records to nine in a row.
Each month since June 2023 has seen new temperature highs for the time of year.
The world's sea surface is at its hottest on record, while Antarctic sea-ice has again reached extreme lows.
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Carbon dioxide concentrations are at their highest level for at least two million years, according to the UN's climate body, and increased by near-record levels again over the past year.
Those warming gases helped make February 2024 about 1.77C warmer than "pre-industrial" times - before humans started burning large amounts of fossil fuels - according to the EU's Copernicus Climate Change Service.
This breaks the previous record, from 2016, by around 0.12C.
These temperatures saw particularly severe heat afflict western Australia, southeast Asia, southern Africa and South America.
The 12-month average now sits at 1.56C above pre-industrial levels - after the first year-long breach of 1.5C warming was confirmed last month.
Back in 2015 in Paris, nearly 200 countries agreed to try to keep the rise in warming under 1.5C, to help avoid some of the worst climate impacts.
That threshold in the Paris agreement is generally accepted to mean a 20-year average - so it hasn't yet been broken - but the relentless string of records illustrates how close the world is getting to doing so.
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https://www.bbc.com/news/science-environment-68428348
