An IPCC term that denotes that a statement or claim has greater than a 95% probability of being true.
For a complete explanation of the IPCC likelihood scale, click here and view the table on page 3.
1. Some other similar IPCC terms are virtually certain and very likely
Example Usages -
1. "From new estimates of the combined anthropogenic forcing due to greenhouse gases, aerosols, and land surface changes, it is extremely likely that human activities have exerted a substantial net warming influence on climate since 1750."
(Source: AR4, Working Group I: The Physical Basis for Climate Change))