The United Nations climate change summit has opened in Egypt with dire warnings about the future of the planet.

A new UN report has revealed that the last 8 years were the hottest on record.

It warns that recent extreme temperatures, wildfires and flooding are signals that climate change is threatening devastation unless immediate action is taken to limit carbon dioxide emissions.

More than 120 world leaders are taking part in the summit, known as COP27, at the Red Sea resort of Sharm el-Sheikh.

There will be two weeks of negotiation on agreeing new climate targets.

Reeta Chakrabarti presents BBC News at Ten reporting by Justin Rowlatt.

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