NEW PAPER:

Climate communication does not simply “summarize” science.
At each stage, it shifts toward the more severe end of the evidence.
In a new paper, we study how this happens from the IPCC to the media using ~115,000 claim pairs and multiple LLMs. 🧵👇

papers.ssrn.com/sol3/papers.cf… The IPCC process is unusual.

Scientists first write a Technical Summary (TS).
Then governments negotiate the Summary for Policymakers (SPM) line by line.
Then newspapers summarize the SPM for the public.
We study the whole communication chain.