Over the last 19 months, 18 have seen global average surface temperatures at least 1.5 degrees Celsius above pre-industrial levels, continuing a concerning trend of record-breaking temperatures.

The world set yet another monthly heat record in January, despite an abnormally chilly U.S., a cooling La Nina​​ and predictions of a slightly less hot 2025, the European climate service Copernicus says.

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.