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<p class=MsoNormal><cite><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in;font-style:normal'>Science</span></cite><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-print-date><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>11 September 2015</span></span><span
class=cit-sep><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>:</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
style='border:none windowtext 1.0pt;padding:0in'><br>
</span><span class=cit-sep><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'>Vol.</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-vol><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>349</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-sep><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>no.</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-issue><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>6253</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-sep><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>pp.</span></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=cit-first-page><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>1221</span></span><span
class=cit-sep><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>-</span></span><span
class=cit-last-page><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>1224<o:p></o:p></span></span></p>
<p class=MsoNormal><span class=cit-sep><span style='font-family:"Arial","sans-serif";
color:#222222;border:none windowtext 1.0pt;padding:0in'>DOI:</span></span><span
class=cit-doi><span style='font-family:"Arial","sans-serif";color:#222222;
border:none windowtext 1.0pt;padding:0in'>10.1126/science.aab2620</span></span><o:p></o:p></p>
<h3 style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:6.0pt;
margin-left:0in;background:white;vertical-align:baseline'><span
style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#333333;
text-transform:uppercase'><o:p> </o:p></span></h3>
<h3 style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:6.0pt;
margin-left:0in;background:white;vertical-align:baseline'><span
style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#333333;
text-transform:uppercase'>THE REINVIGORATION OF THE SOUTHERN OCEAN CARBON SINK<o:p></o:p></span></h3>
<p style='margin:0in;margin-bottom:.0001pt;background:white;vertical-align:
baseline;outline-style: none;font-weight:inherit;font-style:inherit;text-align:
inherit'><span style='font-size:11.0pt;font-family:"Arial","sans-serif";
color:#333333'>Several studies have suggested that the carbon sink in the
Southern Ocean—the ocean’s strongest region for the uptake of
anthropogenic CO<sub><span style='border:none windowtext 1.0pt;padding:0in'>2</span></sub><span
class=apple-converted-space> </span>—has weakened in recent decades.
We demonstrated, on the basis of multidecadal analyses of surface ocean CO<sub><span
style='border:none windowtext 1.0pt;padding:0in'>2</span></sub><span
class=apple-converted-space> </span>observations, that this weakening
trend stopped around 2002, and by 2012, the<span class=apple-converted-space> </span><span
style='background:white'>Southern Ocean had regained its expected strength
based on the growth of atmospheric CO<sub><span style='border:none windowtext 1.0pt;
padding:0in'>2</span></sub>. All three Southern Ocean sectors have contributed
to this reinvigoration of the carbon sink, yet differences in the processes
between sectors exist, related to a tendency toward a zonally more asymmetric
atmospheric circulation. The large decadal variations in the Southern Ocean
carbon sink suggest a rather dynamic ocean carbon cycle that varies more in
time than previously recognized.</span> <o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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