Updated 11/21/2018: The authors of this study are issuing a correction. Study co-author Ralph Keeling, a geosciences professor at Scripps Institution of Oceanography in California, noted, “The overall conclusion that oceans are trapping more and more heat mirrors other studies and is not inaccurate, but the margin of error in the study is larger than originally thought.”
Editor’s note: A new study by scientists in the United States, China, France and Germany estimates that the world’s oceans have absorbed much more excess heat from human-induced climate change than researchers had estimated up to now. This finding suggests that global warming may be even more advanced than previously thought. Atmospheric scientist Scott Denning explains how the new report arrived at this result and what it implies about the pace of climate change.