Major climate changes inevitable and irreversible, says IPCC in starkest warning yet | First Thing

Human activity is changing our planet's climate in unprecedented' ways, the world's leading authority on climate science has said. Plus: flight attendants struggle with sharp rise in disruptive behaviour onboard

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Widespread devastation and extreme weather are likely to become inevitable within the next two decades thanks to human behaviour causing rising temperatures, the International Panel on Climate Change (IPCC) has warned.