ScienceDaily: The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism during the industrial era suggests the oceans are struggling to keep up with rising emissions — a finding with potentially wide implications for future climate. The study appears in the November 19 issue of the journal Nature. The researchers estimate that the oceans last year took up a record 2.3 …