Landmark climate science report due on Friday 27th

A short briefing on what is the IPCC and what their new report on climate science is likely to say.

The Intergovernmental Panel on Climate Change is a UN body tasked with producing five yearly updates of knowledge on the scientific, technical and socio-economic aspects of climate change. It has three scientific working groups each producing and publishing a detailed report. These are synthesised into one document after completion of all three. 

The first group – Working Group 1, The Physical Science Basis (WG1) – will publish a summary of their report on 27th September 2013 and the full report on 30th September. 

This Questions and Answers briefing – produced in advance of the report – explains what the report will cover, what their last report said, and predicts the content of the forthcoming report.