With war in Ukraine spurring an urgent energy rethink in the West, analysts say the latest report from the UN's Intergovernmental Panel on Climate Change will also be an important resource for nations seeking a rapid transition away from Russian oil and gas.
In recent months the IPCC has published the first two instalments in a trilogy of mammoth scientific assessments covering how greenhouse gas pollution is heating the planet and what that means for life on Earth.
This third report will outline what to do about it.
But that answer has sweeping political ramifications as climate solutions touch on virtually all aspects of modern life -- and require significant investment.
Two weeks of gruelling negotiations have seen nearly 200 nations struggling to thrash out line-by-line a high-level "summary for policymakers" that distils the hundreds of pages of underlying assessment.
That meeting was supposed to wrap up on Friday, but dragged on through the weekend. The IPCC assessment was originally due to be published publicly on Monday at 0900 GMT, but that is now likely to be delayed until later in the day.
"Everybody has something to lose and everybody has something to gain," said one person close to the process.
Easy answers are unlikely, with the IPCC expected to detail the need for transformational changes to energy generation and industry, as well as to cities, transportation and food systems.
To save the world from the worst ravages of climate change, the report is also expected to warn that slashing carbon dioxide pollution is no longer enough.
And technologies that are not yet operating to scale will need to be ramped up enormously to suck CO2 out of the atmosphere.
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