A draft United Nations report warns “the same oceans that nourished human evolution are poised to unleash misery on a global scale unless the carbon pollution destabilizing Earth’s marine environment is brought to heel,” according to Agence France-Presse, which exclusively reported on the 900-page scientific assessment Thursday.

The forthcoming report from a U.N. body that assesses science related to the human-caused planetary emergency is due to be released to the public Sep. 25, after diplomats and experts meet in Monaco to approve the final Summary for Policymakers.

AFP, which obtained a draft of the U.N. assessment, reported:

The Special Report on the Ocean and Cryosphere in a Changing Climate will follow the IPCC’s recent reports about what the world would look like with 1.5°C of warming above pre-industrial levels—the lower target of the global Paris climate agreement—and the need for transformative changes to land use to address both planetary heating and hunger.

In a statement earlier this year, Debra Roberts, co-chair of IPCC Working Group II—which focuses on the vulnerability of socio-economic and natural systems to the climate crisis—noted that the U.N. body’s October report showed the broad benefits to people and natural ecosystems of limiting global warming to 1.5°C.

“The Special Report on the Ocean and Cryosphere in a Changing Climate takes this story one step further by evaluating how human and natural communities with be affected by the impacts of climate change on two earth systems that touch all of our lives directly or indirectly, the ocean and the frozen areas of the world,” Roberts said. “It also assesses how we can set the course for a more sustainable and equitable future by reducing or better managing this impact.”

While those working on the IPCC’s ocean report aim to provide the international community with yet another tool to help avert the most catastrophic potential consequences of rising temperatures, AFP pointed out that the crucial advice for policymakers will be released “too late to be considered by world leaders gathering two days earlier for a summit convened by U.N. Secretary-General Antonio Guterres to extract stronger national commitments in confronting the climate crisis.”

When it comes to the September summit, which is focused on the key goals of the Paris accord, AFP reported that “Guterres may be disappointed by what the world’s major greenhouse gas emitters put on the table, according to experts tracking climate politics in China, the United States, the European Union, and India.”