Even allowing warming to exceed 1.5°C for a few decades could trigger irreversible damage.

These ‘warming stripes’, adopted around the world as a symbol of climate awareness, action and ambition, now include another dark red stripe for 2024.

2024 was first calendar year with warming above 1.5°C with unprecedented extremes putting humans and ecosystems at risk

An El Niño event will turbo-charge global warming.

Our annual reports will update the world on the climate’s vital signs.

There is no safe limit to global warming – there is only what people deem to be acceptable damage.

Injecting reflective particles into the atmosphere won’t immediately cool the entire planet. A new study shows how parts of the US, China and Europe might still see temperatures rising a decade later.

These giant predators are helping solve the mystery of Earth's cooling shift some 50 million years ago.

These giant predators are helping solve the mystery of Earth's cooling shift some 50-30 million years ago.

Climate models are likely underestimating the true severity of future warming in urban areas.