Source: MIT Tracker Blog
The data and model-backed hypothesis, not exactly new, got prominent attention in Nature this week via a letter from a research team based at the University of California's Scripps Institution of Oceanography near San Diego. ...
The gist is that ENSO, the El Niño Southern Oscillation, has been persistently in its La Niña phase for more than a decade. And that phase has vigorous trade winds firing from South America toward the western Pacific north of Australia. They push an overturning of the sea, lifting cold, deep water from the abysss off South America to mix with surface waters.
... Data, and runs of models ... indicate that this ... compensate for the growing overall energy tilt due to greenhouse gases. So the Scripps team reports.