Intergovernmental Panel on Climate Change
From Envirowiki
The Intergovernmental Panel on Climate Change is the scientific arm of the UNFCCC. Every 5 years, it provides synthesis reports of climate studies.
[edit] Probability in IPCC reports
The IPCC reports uses very specific definitions of phrases describing probability.
| Phrase | probability of occurrence |
|---|---|
| Virtually certain | > 99% |
| Extremely likely | > 95% |
| Very likely | > 90% |
| Likely | > 66% |
| More likely than not | > 50% |
| Unlikely | < 33% |
| Very unlikely | < 10% |
| Extremely unlikely | < 5% |
