A new UN report says the planet will exceed the 1.5-degree Celsius warming limit set out in the Paris Agreement.
The report concludes that global warming will surpass that threshold. In response, climate scientists are shifting their focus: rather than treating 1.5C as a line that must never be crossed, the priority now is minimizing how much time the planet spends above it. That is a real change in framing from the Paris Agreement's original goal of holding warming below the limit outright. The report does not detail a specific timeline or emissions path for returning under the threshold.
Goalpost shifts like this tend to happen quietly, well after the public commitment was made. Treating 1.5C as a ceiling to briefly poke through, rather than a wall that holds, changes how progress gets measured and reported from here on. It also raises the question of what counts as success when the original bright line has already been crossed.
The Paris Agreement was sold as a hard limit; this report reads more like an acknowledgment that the limit already slipped.