Science Source
EEE 2014: Record Annual Mean Warmth Over Europe, the Northeast Pacific, and the Northwest Atlantic During 2014: Assessment of Anthropogenic Influence
Main findings:
According to CMIP5 models, the risk of record annual mean warmth in European, northeast Pacific, and northwest Atlantic regions—as occurred in 2014—has been greatly increased by anthropogenic climate change.
Longer report:
EEE 2014 = Explaining Extreme Events of 2014 from a Climate Perspective