The Copenhagen Diagnosis
The Copenhagen Diagnosis. It is more than three years since the drafting of text was completed for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4). In the meantime, many hundreds of papers have been published on a suite of topics related to human-induced climate change.The purpose of this report is to synthesize the most policy-relevant climate science published since the close-off of material for the last IPCC report.