point of no return

The world's tropical coral reefs have almost certainly crossed a point of no return as oceans warm beyond a level most can survive, a major scientific report announced on Monday.

The world's tropical coral reefs have almost certainly crossed a point of no return as oceans warm beyond a level most can survive, a major scientific report announced on Monday.

Rare wildlife habitats could be pushed "beyond the point of no return" by large solar farm developments, conservationists have warned.

“The accusation is the gravest news for the Mexican financial system in decades and represents a point of no return for these three firms,” wrote columnist Carlos Mota of the El Heraldo de México newspaper.

Israel, and several Western countries, suspect that Iran has been secretly working towards what is called "breakout capability", meaning the point of no return in developing a viable nuclear weapon.