June 2023 may be remembered as the start of a big change in the climate system, with many key global indicators flashing red warning lights amid signs that some systems are tipping toward a new state from which they may not recover.

“These extraordinary extremes could be an early warning of tipping points towards different weather or sea ice or fire regimes… We call it ‘flickering’ when a complex system starts to briefly sample a new regime before tipping into it. Let’s hope I’m wrong on that.”

June extremes suggest parts of climate system are reaching tipping points | Ars Technica