<story><title>Oceans May Have Already Seen 1.7°C of Warming</title><url>https://eos.org/articles/oceans-may-have-already-seen-1-7c-of-warming</url></story><parent_chain><item><author>phkahler</author><text>But why is that? Why a sudden jump this year?</text></item><item><author>yboris</author><text>The graphs of water temperature over the last 2 years have been off the charts - literally; required adjusting the y-axis:&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754540413350732180&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754540413350732180&lt;/a&gt;</text></item></parent_chain><comment><author>michael1999</author><text>There are lots of forces, and the feedback loops are starting to hit.&lt;p&gt;- Warming has been going on for 200 years, so we are deep into it.&lt;p&gt;- The polar ice sheet has been shrinking because it is warmer.  So instead of the long summer days reflecting off the ice, they are absorbed by the ocean.&lt;p&gt;- Shipping has been eliminating sulphur from bunker fuel to reduce acid rain and smog (2020 change), and the lack of smog allows more sun to reach the earth.&lt;p&gt;The recent shock of cleaner shipping exhaust has combined with the historical warming and the feedback loops of falling ice albedo (and others) shows up in warmer water.&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.nasa.gov&amp;#x2F;missions&amp;#x2F;aqua&amp;#x2F;nasa-study-finds-evidence-that-fuel-regulation-reduced-air-pollution-from-shipping&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.nasa.gov&amp;#x2F;missions&amp;#x2F;aqua&amp;#x2F;nasa-study-finds-evidence...&lt;/a&gt;&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;nsidc.org&amp;#x2F;arcticseaicenews&amp;#x2F;charctic-interactive-sea-ice-graph&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;nsidc.org&amp;#x2F;arcticseaicenews&amp;#x2F;charctic-interactive-sea-...&lt;/a&gt;</text></comment>
<story><title>Oceans May Have Already Seen 1.7°C of Warming</title><url>https://eos.org/articles/oceans-may-have-already-seen-1-7c-of-warming</url></story><parent_chain><item><author>phkahler</author><text>But why is that? Why a sudden jump this year?</text></item><item><author>yboris</author><text>The graphs of water temperature over the last 2 years have been off the charts - literally; required adjusting the y-axis:&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754540413350732180&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754540413350732180&lt;/a&gt;</text></item></parent_chain><comment><author>hn_throwaway_99</author><text>The next self reply to that tweet (xeet?) hypothesizes it is reduction in aerosols (massive reduction in sulfur in global shipping):&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754541230774419929&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;twitter.com&amp;#x2F;LeonSimons8&amp;#x2F;status&amp;#x2F;1754541230774419929&lt;/a&gt;</text></comment>