Climate crisis at 'tipping point', scientists warn | ITV News

"We're in a state of planetary emergency," not the words of breathless campaigners protesting on the streets, or even environment correspondents like me, screaming in their wellies, but a team of distinguished scientists writing in one of the world's leading science journals.

A decade ago, Professor Tim Lenton from the University of Exeter coined the phrase "planetary tipping points" to describe parts of the Earth's interconnected systems that in the past had been pushed from one state, past an irreversible point, into another.