<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>Sightline InstituteBlast from the Past - Sightline Institute</title>
	<atom:link href="https://www.sightline.org/2010/10/25/blast-from-the-past/feed/" rel="self" type="application/rss+xml" />
	<link>https://www.sightline.org/2010/10/25/blast-from-the-past/</link>
	<description>News and Views for a Sustainable Northwest</description>
	<lastBuildDate>Fri, 09 Feb 2024 15:54:39 +0000</lastBuildDate>
	<language></language>
	<sy:updatePeriod>daily</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>https://wordpress.org/?v=6.4.3</generator>
	
		<item>
		<title>Blast from the Past</title>
		<link><![CDATA[https://www.sightline.org/2010/10/25/blast-from-the-past/]]></link>
		<pubDate>Mon, 25 Oct 2010 16:30:00 +0000</pubDate>
		<description><![CDATA[One of the most innovative energy strategies is really old. | Editor&#8217;s note: This post originally appeared at Sustainable Industries Journal. For permission to reprint, contact them. Imagine an efficient system of centralized heating powered by renewable energy using underground pipes to heat water and air for multiple buildings. Sergius Orata developed just such a system. Is Sergius Orata a new experimental energy start-up from Scandinavia? Actually, he was a hydraulic engineer who did the bulk of his work about 2000...]]></description>
					</item>
	</channel>
</rss>
