IPCC Leaves AR7 Timeline Unsettled
The climate science panel ended a week-long meeting in Addis Ababa without fixing a publication date for its seventh assessment report.
Updated on Nov. 2, 2026 in Environmental
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The Intergovernmental Panel on Climate Change concluded a week-long meeting in Addis Ababa on Friday without setting a firm timeline for AR7, its seventh assessment report, which had been scheduled for 2028. Saudi Arabia, Russia, India, China, and Kenya have pushed to postpone the report to 2029 or later.
Why it matters
The report feeds into the next round of nationally determined climate contributions discussed at COP33 in late 2028, so a delay could leave those negotiations without updated science. The dispute also reflects a disagreement over whether developed countries skew the scientific findings.
The previous assessment was published in 2021, and AR7 had been scheduled for 2028, a seven-year gap. The panel's scientific content is largely completed and under review, but whether the report appears on schedule remains undecided.
The players
Intergovernmental Panel on Climate Change (IPCC)
The United Nations body that assesses climate science and publishes periodic assessment reports informing global climate policy.
Saudi Arabia
A major oil-producing nation that leads the coalition seeking to postpone the IPCC report.
The details
Saudi Arabia, Russia, and India, joined by China and Kenya, have argued that climate science is skewed by developed-country influence and want the report delayed. The IPCC maintains it uses rigorous measures to include scientists worldwide. One proposed compromise would start work now on mechanisms to bring in developing-world science while keeping the 2028 deadline for the physical science section and possibly delaying the impacts and mitigation sections.
Timeline
2021: The previous IPCC assessment report was published.
2028: AR7 was originally scheduled for publication.
Late 2028: COP33 climate summit to discuss nationally determined contributions.
2029: Proposed postponed publication date for AR7.
Big Picture
The dispute departs from the regular assessment cycle set by the 2021 AR6 report, which had put AR7 on a 2028 track. Whether the schedule slips will determine if updated science reaches the 2028 COP33 negotiations.
A delayed IPCC report would leave the latest climate science unavailable to governments drafting new emissions pledges ahead of COP33. Readers following climate policy should expect the timing question to shape upcoming summit agendas.
The takeaway
Delays in the climate science cycle can ripple into the emissions targets governments set years later, so the AR7 timing decision matters beyond the scientific community. Watch the COP31 and COP33 agendas for how the postponement is resolved.
What happens next
The disagreement is expected to feature prominently at the COP31 climate summit in Turkey next month, where the AR7 timeline is likely to be debated.
Further reading
For broader context on how these assessments shape policy, explore Environmental coverage on Wisevoter.
Source note: This article includes information reported by RocketNews.
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