Science Source

Detection of Anthropogenic Climate Change in the World's Oceans

States that large-scale increases in the heat content of the world's oceans have been observed to occur over the last 45 years
States that the horizontal and temporal character of these changes has been closely replicated by the state-of-the-art Parallel Climate Model (PCM) forced by observed and estimated anthropogenic gases
Finds that model-produced signals are indistinguishable from the observations at the 0.05 confidence level
Finds that the chances of either the anthropogenic or observed signals being produced by the PCM as a result of natural, internal forcing alone are less than 5%
Concludes that the observed ocean heat-content changes are consistent with those expected from anthropogenic forcing, which broadens the basis for claims that an anthropogenic signal has been detected in the global climate system