<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>jazzyjackson</author><text>I guess you mean the shape of the countries doesn&amp;#x27;t change much? iirc the majority of Earth&amp;#x27;s population lives on coastlines, most major cities will be inundated</text><parent_chain><item><author>arno_v</author><text>Surprisingly if you put it to 20 meters the effect globally seem insignificant. Although 80% of my own country would be flooded, so that&amp;#x27;s not great.</text></item><item><author>gnatman</author><text>I just went looking for a map to see how different coastlines would look with a 200m sea level rise. It&amp;#x27;s, unsurprisingly, significant!!&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.floodmap.net&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.floodmap.net&amp;#x2F;&lt;/a&gt;</text></item><item><author>Gravityloss</author><text>The scientists know this. Paleoclimatology is one big part of climatology. But the outcome is the opposite - you should be more scared, since it shows that climate can change massively. That affects things like agriculture or sea level. What would you assume the sea level was, when those plants were alive?&lt;p&gt;For example, with very quick search:&lt;p&gt;&amp;quot;In general, world oceans were about 100 to 200 metres (330 to 660 feet) higher in the Early Cretaceous and roughly 200 to 250 metres (660 to 820 feet) higher in the Late Cretaceous than at present.&amp;quot;&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.britannica.com&amp;#x2F;science&amp;#x2F;Cretaceous-Period&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.britannica.com&amp;#x2F;science&amp;#x2F;Cretaceous-Period&lt;/a&gt;</text></item><item><author>ChuckMcM</author><text>I am not a &amp;quot;denier&amp;quot;, I can recognize that anthropomorphic activities are changing the climate over time and we&amp;#x27;re not prepared to deal with that. But this sort of article annoys me because &amp;quot;on record&amp;quot; represents a nanosecond of geologic time. There are mountains, and &lt;i&gt;plant fossils&lt;/i&gt;[1] under the ice at Antartica, so at some point in the geologic record there was little to no ice at all! And no humans likely either, which can happen again, but the relentless effort to drive anxiety of extinction through the human race just feels so non-helpful to me.&lt;p&gt;[1] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;oceanwide-expeditions.com&amp;#x2F;blog&amp;#x2F;the-ancient-fossil-forests-of-antarctica&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;oceanwide-expeditions.com&amp;#x2F;blog&amp;#x2F;the-ancient-fossil-fo...&lt;/a&gt;</text></item></parent_chain></comment><story><title>Antarctic sea ice hits lowest minimum on record</title><url>https://www.nature.com/articles/d41586-022-00550-4</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>scruple</author><text>At 20 meters, the Bay Area, the Central Valley, Los Angeles, and parts of Orange county are significantly impacted.</text><parent_chain><item><author>arno_v</author><text>Surprisingly if you put it to 20 meters the effect globally seem insignificant. Although 80% of my own country would be flooded, so that&amp;#x27;s not great.</text></item><item><author>gnatman</author><text>I just went looking for a map to see how different coastlines would look with a 200m sea level rise. It&amp;#x27;s, unsurprisingly, significant!!&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.floodmap.net&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.floodmap.net&amp;#x2F;&lt;/a&gt;</text></item><item><author>Gravityloss</author><text>The scientists know this. Paleoclimatology is one big part of climatology. But the outcome is the opposite - you should be more scared, since it shows that climate can change massively. That affects things like agriculture or sea level. What would you assume the sea level was, when those plants were alive?&lt;p&gt;For example, with very quick search:&lt;p&gt;&amp;quot;In general, world oceans were about 100 to 200 metres (330 to 660 feet) higher in the Early Cretaceous and roughly 200 to 250 metres (660 to 820 feet) higher in the Late Cretaceous than at present.&amp;quot;&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.britannica.com&amp;#x2F;science&amp;#x2F;Cretaceous-Period&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.britannica.com&amp;#x2F;science&amp;#x2F;Cretaceous-Period&lt;/a&gt;</text></item><item><author>ChuckMcM</author><text>I am not a &amp;quot;denier&amp;quot;, I can recognize that anthropomorphic activities are changing the climate over time and we&amp;#x27;re not prepared to deal with that. But this sort of article annoys me because &amp;quot;on record&amp;quot; represents a nanosecond of geologic time. There are mountains, and &lt;i&gt;plant fossils&lt;/i&gt;[1] under the ice at Antartica, so at some point in the geologic record there was little to no ice at all! And no humans likely either, which can happen again, but the relentless effort to drive anxiety of extinction through the human race just feels so non-helpful to me.&lt;p&gt;[1] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;oceanwide-expeditions.com&amp;#x2F;blog&amp;#x2F;the-ancient-fossil-forests-of-antarctica&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;oceanwide-expeditions.com&amp;#x2F;blog&amp;#x2F;the-ancient-fossil-fo...&lt;/a&gt;</text></item></parent_chain></comment><story><title>Antarctic sea ice hits lowest minimum on record</title><url>https://www.nature.com/articles/d41586-022-00550-4</url></story>