In an open letter, the scientists call on Parties at the COP26 global climate conference in Glasgow to fully acknowledge the most recent scientific assessment of climate change. In particular, they want the Sixth Assessment Report on Climate Change 2021 to be noted: The Physical Science Basis (Climate Report). This was published in August 2021.
The open letter was signed by several climate researchers from ETH Zurich, including Andreas Fischlin, Nicolas Gruber, Reto Knutti and Sonia Seneviratne, who was also one of the coordinators of the letter and one of the coordinating lead authors of the aforementioned IPCC report.
The original text of the open letter can be found