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	<id>https://thechange.wiki/index.php?action=history&amp;feed=atom&amp;title=Archive%3A000%2FComputers%2FLCA</id>
	<title>Archive:000/Computers/LCA - Revision history</title>
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	<updated>2026-08-02T23:44:10Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.41.0</generator>
	<entry>
		<id>https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=2191&amp;oldid=prev</id>
		<title>Elie: Elie moved page Computers/LCA to Archive:000/Computers/LCA without leaving a redirect: Huge_refactor</title>
		<link rel="alternate" type="text/html" href="https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=2191&amp;oldid=prev"/>
		<updated>2024-10-26T20:29:28Z</updated>

		<summary type="html">&lt;p&gt;Elie moved page &lt;a href=&quot;/index.php?title=Computers/LCA&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Computers/LCA (page does not exist)&quot;&gt;Computers/LCA&lt;/a&gt; to &lt;a href=&quot;/Archive:000/Computers/LCA&quot; title=&quot;Archive:000/Computers/LCA&quot;&gt;Archive:000/Computers/LCA&lt;/a&gt; without leaving a redirect: Huge_refactor&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:29, 26 October 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Elie</name></author>
	</entry>
	<entry>
		<id>https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=1010&amp;oldid=prev</id>
		<title>Elie: /* Scope */</title>
		<link rel="alternate" type="text/html" href="https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=1010&amp;oldid=prev"/>
		<updated>2023-04-03T18:32:41Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Scope&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:32, 3 April 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l14&quot;&gt;Line 14:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 14:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Scope===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Scope===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For now, let's try to estimate this ratio for ''server'' computers, because it'd probably be...&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For now, let's try to estimate this ratio for ''server'' computers&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{x|and this could also include small-scale personally-owned crypto mining systems}}&lt;/ins&gt;, because it'd probably be...&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* more predictable: Servers are load-balanced, whereas desktop computers tend to sit idle most of the time.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* more predictable: Servers are load-balanced, whereas desktop computers tend to sit idle most of the time.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* more important: Servers are the most likely to scale up whenever there's growth in crypto or A.I.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* more important: Servers are the most likely to scale up whenever there's growth in crypto or A.I.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For desktop computers and mobile phones, their life-cycle energy is ''still important'' for assessing the environmental impact of [[planned obsolescence]] and [[code bloat]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For desktop computers and mobile phones, their life-cycle energy is ''still important'' for assessing the environmental impact of [[planned obsolescence]] and [[code bloat]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Elie</name></author>
	</entry>
	<entry>
		<id>https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=1009&amp;oldid=prev</id>
		<title>Elie: Created page with &quot;This is a page about life cycle assessment of computers.  ==Ratio needed== We need to compare :''a'': the ''total'' life-cycle energy of a computer: &amp;nbsp; production{{x|manufacturing + assembly + [if recycling is ''not'' counted in &quot;end-of-life&quot;, then include the production of most of the raw materials involved]}} + usage + end-of-life{{x|preferably, estimate how much energy it would take to properly ''recycle'' the computer}} with :''b'': just the energy the comput...&quot;</title>
		<link rel="alternate" type="text/html" href="https://thechange.wiki/index.php?title=Archive:000/Computers/LCA&amp;diff=1009&amp;oldid=prev"/>
		<updated>2023-04-03T18:23:32Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;This is a page about &lt;a href=&quot;/index.php?title=Life_cycle_assessment&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Life cycle assessment (page does not exist)&quot;&gt;life cycle assessment&lt;/a&gt; of computers.  ==Ratio needed== We need to compare :&amp;#039;&amp;#039;a&amp;#039;&amp;#039;: the &amp;#039;&amp;#039;total&amp;#039;&amp;#039; life-cycle energy of a computer:   production{{x|manufacturing + assembly + [if recycling is &amp;#039;&amp;#039;not&amp;#039;&amp;#039; counted in &amp;quot;end-of-life&amp;quot;, then include the production of most of the raw materials involved]}} + usage + end-of-life{{x|preferably, estimate how much energy it would take to properly &amp;#039;&amp;#039;recycle&amp;#039;&amp;#039; the computer}} with :&amp;#039;&amp;#039;b&amp;#039;&amp;#039;: just the energy the comput...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;This is a page about [[life cycle assessment]] of computers.&lt;br /&gt;
&lt;br /&gt;
==Ratio needed==&lt;br /&gt;
We need to compare&lt;br /&gt;
:''a'': the ''total'' life-cycle energy of a computer: &amp;amp;nbsp; production{{x|manufacturing + assembly + [if recycling is ''not'' counted in &amp;quot;end-of-life&amp;quot;, then include the production of most of the raw materials involved]}} + usage + end-of-life{{x|preferably, estimate how much energy it would take to properly ''recycle'' the computer}}&lt;br /&gt;
with&lt;br /&gt;
:''b'': just the energy the computer is expected to ''consume'' during its lifespan of ''usage''.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;small&amp;gt;The ratio would be &amp;quot;''a/b''&amp;quot; with the definitions above.&amp;lt;/small&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===What this is needed for===&lt;br /&gt;
* You know when news articles talk about how much [[energy]] is used in A.I., cloud computing, cryptocurrency, etc.: This only includes the energy ''consumed'' by the computers/servers. It doesn't factor in any of the energy it takes to ''manufacture'' the computers in the first place. A simple solution would be to multiply by the ratio described above.&lt;br /&gt;
* The ratio would also help computer server owners decide{{x|if we want the best decision with regards to reducing carbon emissions}}whether or not to upgrade older computers to newer more energy-efficient ones.&lt;br /&gt;
&lt;br /&gt;
===Scope===&lt;br /&gt;
For now, let's try to estimate this ratio for ''server'' computers, because it'd probably be...&lt;br /&gt;
* more predictable: Servers are load-balanced, whereas desktop computers tend to sit idle most of the time.&lt;br /&gt;
* more important: Servers are the most likely to scale up whenever there's growth in crypto or A.I.&lt;br /&gt;
&lt;br /&gt;
For desktop computers and mobile phones, their life-cycle energy is ''still important'' for assessing the environmental impact of [[planned obsolescence]] and [[code bloat]].&lt;/div&gt;</summary>
		<author><name>Elie</name></author>
	</entry>
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