2025 was the third hottest year on record, but thousands of cities saw record heat and one broke a record for cold.

2025 was the third hottest year on record, but thousands of cities saw record heat and one broke a record for cold.

The last three years were Earth's hottest on record, as humanity's carbon emissions continue to heat the planet.

For the first time, a three-year period – from 2023 to 2025 – has surpassed the symbolic threshold of 1.5°C of warming, the most ambitious limit set by the Paris Agreement,…

The world continues a streak of warming temperatures with 2025 winding up as the third hottest globally and fourth warmest in the US.