A fight has broken out over when major climate change assessments should be released, and the outcome could make it significantly harder to hold countries accountable for their emissions pledges. The issue is not whether the assessments happen, but when they happen, and that timing may determine how much political weight they carry.

New Scientist reports that the scheduling dispute risks letting countries off the hook. If crucial assessments are published at the wrong moment, or too late to inform key decisions, the evidence needed to judge national efforts could lose its force.

The concern is that delays or awkward timing could give governments more room to miss emissions targets without facing clear consequences. The row highlights how the mechanics of climate diplomacy — not just the science itself — can shape whether countries stay honest.