IPCC chair Jim Skea suspended the UN climate science panel's meeting in Addis Ababa, Ethiopia, on Friday night. There's still no deal on when its next major reports come out. The meeting ran past its scheduled end, and many delegates from the poorest countries and small island states had to leave. The panel will resume "at the earliest opportunity," with no date set. The scientists who lead the reports proposed getting all three approved by September 2028. That's in time for a UN review of global climate progress that wraps up in November 2028. India, Saudi Arabia, China, Russia and Kenya want more time. A plan based on Saudi and Indian proposals would push two of the reports into 2029. Governments had already failed to settle this at five straight meetings. The United States, the panel's biggest funder, quit it in January.

The Science Has to Land Before the 2028 Review (Benoit Faraco, Tina Stege)

These diplomats and advocates say reports that arrive after the review come too late to shape it.

A small group of countries is stalling the reports. Benoit Faraco is France's senior envoy at the talks. He wrote on LinkedIn that a broad coalition "managed to withstand pressure from a few countries seeking to slow down the process." "This deadlock is not new, and it risks costing us valuable time in our response to climate change," he wrote.

Island nations need this science now. Tina Stege is the climate envoy for the Marshall Islands. "It's a travesty that a handful of countries continue to delay the IPCC's reports -- the science we need back home to help us save lives and livelihoods," she said. "We were here to work, but found every proposal dismissed," she added.

Ministers from rich and poor countries back the 2028 date. Ministers from more than 30 nations signed a letter earlier this month. They wrote that "divorcing the policy cycle under the United Nations from the scientific evidence provided by the IPCC would undermine the global effort to address the climate crisis." Ministers from island states signed it, and so did the head of the group representing the world's 44 poorest countries. Shreeshan Venkatesh of Climate Action Network said governments "had enough time to reach agreement" and should meet again soon.

A Rushed Timeline Shuts Out Scientists From Poorer Countries (Thiagarajan Jayaraman, Meena Raman, Leon Sealey-Huggins, Saudi Arabia)

These scientists, advocates and governments say more time means fairer science.

The reports matter for more than one meeting. Thiagarajan Jayaraman is a scientist who represents India at the IPCC. Before the meeting, he said it was "short-sighted" to suggest the panel's value rests only on feeding the 2028 talks. He said issues of "equity and inclusivity" sometimes get "simply ducked."

Researchers in poorer countries need more time to take part. Developing countries say some of their scientists struggle to publish in time or to take time off for unpaid IPCC work. Saudi Arabia argued at an earlier meeting that a slower schedule gives developing countries "time to undertake their reviews and inclusive engagement."

Speed isn't everything. Meena Raman of the Third World Network and Leon Sealey-Huggins of the charity War on Want made this case in Climate Home News on Friday. "The world urgently needs the next assessment of climate science. But speed cannot be the only consideration," they wrote. They said reports finished in 2029 could still shape countries' next climate plans, due in 2030. They also wrote that "timely science does not guarantee political action."

Oil Producers Are Leaning on the Panel (Mark Gongloff, Bill Hare)

These critics say the push to slow the reports helps petrostates, and that fossil-fuel producers have long leaned on the panel.

Judge these countries by what the delay does, not what they say. Mark Gongloff is a Bloomberg Opinion columnist. He argued that you should judge a system by its results, not its stated goals. Before the meeting ended, he wrote that the purpose of China, India, Russia, Saudi Arabia and a handful of others in the talks "is to make the planet much hotter." He said the review "will be more meaningful" with fresh science.

Fossil-fuel producers have leaned on this panel before. Bill Hare is the CEO of Climate Analytics, a climate research group. In a Carbon Brief piece published as the meeting got under way, he said pressure on the IPCC "from fossil-fuel producers" has a long history. He said today's politics empower "forces that want to break off the IPCC from the Paris Agreement climate process." In their letter, the ministers also took aim at "those whose entrenched interests are at odds with reducing greenhouse gases."

Where This Lands

The 2028 camp says reports that miss the review will come too late to shape the world's next climate decisions. India's Jayaraman and his allies say rushing would leave out scientists from poorer countries, and the reports will still matter in 2029. Gongloff says that, judged by results, the countries seeking delay are pushing toward a hotter planet. Hare says fossil-fuel producers have pressured the panel for years.

Sources