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	<title>Comments on: Mt. Etna erupts!</title>
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	<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/</link>
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		<title>By: chaos</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274890</link>
		<dc:creator>chaos</dc:creator>
		<pubDate>Tue, 25 Jan 2011 12:34:28 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274890</guid>
		<description>Hi,

I&#039;m a Filipino, so I can&#039;t help but notice, you got the town near Mayon Volcano wrong. It&#039;s &quot;Legazpi&quot;. Also, it&#039;s a city.</description>
		<content:encoded><![CDATA[<p>Hi,</p>
<p>I&#8217;m a Filipino, so I can&#8217;t help but notice, you got the town near Mayon Volcano wrong. It&#8217;s &#8220;Legazpi&#8221;. Also, it&#8217;s a city.</p>
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	<item>
		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274889</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Mon, 24 Jan 2011 05:25:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274889</guid>
		<description>@11. ERic :

&lt;blockquote&gt;&lt;i&gt;@Uncle Al: Wait, I’m confused. I thought a nice big volcanic eruption would counteract GCC.&lt;/i&gt;&lt;/blockquote&gt;

Well the BA notes in another volcano post &lt;i&gt;&#039;Remnants of a violent past&#039;&lt;/i&gt; posted November 24th, 2010 &amp; linked above, moderation permitting :

&lt;blockquote&gt;Krakatau, or Krakatoa, an active volcano in Indonesia ... [Snip!] ... this particular hill decided to throw something of a hissy fit in 1883. In fact in four separate monstrous explosions the volcano detonated with the energetic yield of about 200 megatons of TNT — several times the energy of the most powerful nuclear weapon ever tested. The explosions tore the island apart, and killed tens of thousands of people. It threw so much ash in the atmosphere that the global average temperature dropped over a degree. As a solution to global warming it leaves something to be desired.&lt;/blockquote&gt;

Actually volcanoes &lt;b&gt;*both* add to Co2 levels&lt;/b&gt; by emittting the gas and &lt;b&gt;*also* temporarily reduce our planet&#039;s temperature&lt;/b&gt;  by emitting *other* gases and reflective particles. Their exact impact on our climate, I gather, varies based on the precise type &amp; size of the eruption and also, I think, changes over time; ie. once the initial cooling particles fall out of the atmosphere, then the warming impact of the Co2 which stays around longer kicks in.

For details &amp; more info. speak to your nearest friendly climatologist and/or vulcanologist  - of which I&#039;m neither, just an interested layperson who reads a lot. :-)

As for shutting Mt Etna down to prevent it emitting Carbon Dioxide into the air - good luck with that! ;-)

We can only really control our emissions NOT nature&#039;s.</description>
		<content:encoded><![CDATA[<p>@11. ERic :</p>
<blockquote><p><i>@Uncle Al: Wait, I’m confused. I thought a nice big volcanic eruption would counteract GCC.</i></p></blockquote>
<p>Well the BA notes in another volcano post <i>&#8216;Remnants of a violent past&#8217;</i> posted November 24th, 2010 &amp; linked above, moderation permitting :</p>
<blockquote><p>Krakatau, or Krakatoa, an active volcano in Indonesia &#8230; [Snip!] &#8230; this particular hill decided to throw something of a hissy fit in 1883. In fact in four separate monstrous explosions the volcano detonated with the energetic yield of about 200 megatons of TNT — several times the energy of the most powerful nuclear weapon ever tested. The explosions tore the island apart, and killed tens of thousands of people. It threw so much ash in the atmosphere that the global average temperature dropped over a degree. As a solution to global warming it leaves something to be desired.</p></blockquote>
<p>Actually volcanoes <b>*both* add to Co2 levels</b> by emittting the gas and <b>*also* temporarily reduce our planet&#8217;s temperature</b>  by emitting *other* gases and reflective particles. Their exact impact on our climate, I gather, varies based on the precise type &amp; size of the eruption and also, I think, changes over time; ie. once the initial cooling particles fall out of the atmosphere, then the warming impact of the Co2 which stays around longer kicks in.</p>
<p>For details &amp; more info. speak to your nearest friendly climatologist and/or vulcanologist  &#8211; of which I&#8217;m neither, just an interested layperson who reads a lot. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>As for shutting Mt Etna down to prevent it emitting Carbon Dioxide into the air &#8211; good luck with that! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
<p>We can only really control our emissions NOT nature&#8217;s.</p>
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	<item>
		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274888</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Mon, 24 Jan 2011 05:15:23 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274888</guid>
		<description>@17.Old Geezer : &lt;i&gt;Does anybody recall seeing a post very much like this one ten days ago?&lt;/i&gt;

You mean this one :

http://blogs.discovermagazine.com/badastronomy/2011/01/10/sunrise-eruption/

Of Russian Kamchatka volcanoes taken by NASA&#039;s &lt;i&gt;Earth Observing-1&lt;/i&gt; satellite,  erupting posted back on the 10th January at 7 a.m. &amp; also with a gallery? Yes , its a similar type of post and image but I for one am not complaining. :-)

Comparing the two, I think the Etna one&#039;s better. ;-)

It even beats the Krakatoa image mentioned below :

 http://blogs.discovermagazine.com/badastronomy/2010/11/24/remnants-of-a-violent-past/

Although that volcano wins for eruption scale methinks! ;-)</description>
		<content:encoded><![CDATA[<p>@17.Old Geezer : <i>Does anybody recall seeing a post very much like this one ten days ago?</i></p>
<p>You mean this one :</p>
<p><a href="http://blogs.discovermagazine.com/badastronomy/2011/01/10/sunrise-eruption/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2011/01/10/sunrise-eruption/</a></p>
<p>Of Russian Kamchatka volcanoes taken by NASA&#8217;s <i>Earth Observing-1</i> satellite,  erupting posted back on the 10th January at 7 a.m. &amp; also with a gallery? Yes , its a similar type of post and image but I for one am not complaining. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>Comparing the two, I think the Etna one&#8217;s better. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
<p>It even beats the Krakatoa image mentioned below :</p>
<p> <a href="http://blogs.discovermagazine.com/badastronomy/2010/11/24/remnants-of-a-violent-past/" rel="nofollow">http://blogs.discovermagazine.com/badastronomy/2010/11/24/remnants-of-a-violent-past/</a></p>
<p>Although that volcano wins for eruption scale methinks! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
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		<title>By: Allen Thomson</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274887</link>
		<dc:creator>Allen Thomson</dc:creator>
		<pubDate>Sun, 23 Jan 2011 20:10:56 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274887</guid>
		<description>&gt; Don’t many satellites contain momentum wheels that allow them to be pointed in different directions besides straight down?

Yes. Although most pictures are taken near nadir, the satellites can and sometimes do point considerably to the side.</description>
		<content:encoded><![CDATA[<p>&gt; Don’t many satellites contain momentum wheels that allow them to be pointed in different directions besides straight down?</p>
<p>Yes. Although most pictures are taken near nadir, the satellites can and sometimes do point considerably to the side.</p>
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		<title>By: KAE</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274886</link>
		<dc:creator>KAE</dc:creator>
		<pubDate>Sat, 22 Jan 2011 13:59:02 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274886</guid>
		<description>&quot;...With the blue
mountains of Calabria in the east, they walked away from the
mountain that had returned them, the frightening Mount Etna&quot;

From Rick Wakeman&#039;s album &quot;Journey to the Centre of the Earth&quot;
I&#039;ll have to check the book version... once I find it. ;)</description>
		<content:encoded><![CDATA[<p>&#8220;&#8230;With the blue<br />
mountains of Calabria in the east, they walked away from the<br />
mountain that had returned them, the frightening Mount Etna&#8221;</p>
<p>From Rick Wakeman&#8217;s album &#8220;Journey to the Centre of the Earth&#8221;<br />
I&#8217;ll have to check the book version&#8230; once I find it. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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		<title>By: Drhoz</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274885</link>
		<dc:creator>Drhoz</dc:creator>
		<pubDate>Fri, 21 Jan 2011 12:50:30 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274885</guid>
		<description>The big scoop out of the side in the radar image reminds me of the flank of Mt St. Helen - I wonder if something similar happened at Etna in prehistory?</description>
		<content:encoded><![CDATA[<p>The big scoop out of the side in the radar image reminds me of the flank of Mt St. Helen &#8211; I wonder if something similar happened at Etna in prehistory?</p>
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	<item>
		<title>By: Chris</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274884</link>
		<dc:creator>Chris</dc:creator>
		<pubDate>Fri, 21 Jan 2011 12:45:29 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274884</guid>
		<description>Don&#039;t many satellites contain momentum wheels that allow them to be pointed in different directions besides straight down?</description>
		<content:encoded><![CDATA[<p>Don&#8217;t many satellites contain momentum wheels that allow them to be pointed in different directions besides straight down?</p>
]]></content:encoded>
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	<item>
		<title>By: Martin</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274883</link>
		<dc:creator>Martin</dc:creator>
		<pubDate>Fri, 21 Jan 2011 09:25:17 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274883</guid>
		<description>#1 and #2



Actually, the three explorers in Verne&#039;s story actually came out of Stromboli, an island/volcano to the north of Sicily.

</description>
		<content:encoded><![CDATA[<p>#1 and #2</p>
<p>Actually, the three explorers in Verne&#8217;s story actually came out of Stromboli, an island/volcano to the north of Sicily.</p>
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		<title>By: Brad</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274882</link>
		<dc:creator>Brad</dc:creator>
		<pubDate>Fri, 21 Jan 2011 03:28:38 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274882</guid>
		<description>My favorite is Hello Cleveland -- you can see how the shock wave of the eruption has impacted the clouds around it.

Awesome blog by the way. Just found it... wandered o&#039;er here from cosmic variance.</description>
		<content:encoded><![CDATA[<p>My favorite is Hello Cleveland &#8212; you can see how the shock wave of the eruption has impacted the clouds around it.</p>
<p>Awesome blog by the way. Just found it&#8230; wandered o&#8217;er here from cosmic variance.</p>
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	<item>
		<title>By: Trebuchet</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2011/01/20/mt-etna-erupts/#comment-274881</link>
		<dc:creator>Trebuchet</dc:creator>
		<pubDate>Fri, 21 Jan 2011 01:00:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=26737#comment-274881</guid>
		<description>Gorgeous pics, even if most have been seen here before.  However, I must whine:
When I&#039;m stuck in the land of dial-up, these dang galleries don&#039;t work at all.   Unless I wait an hour or so.  Perhaps a link to the gallery instead?</description>
		<content:encoded><![CDATA[<p>Gorgeous pics, even if most have been seen here before.  However, I must whine:<br />
When I&#8217;m stuck in the land of dial-up, these dang galleries don&#8217;t work at all.   Unless I wait an hour or so.  Perhaps a link to the gallery instead?</p>
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