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	<title>The Why Files &#187; Energy</title>
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	<link>http://whyfiles.org</link>
	<description>The Science Behind The News</description>
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		<title>Tar sands</title>
		<link>http://whyfiles.org/2009/tar-sands/</link>
		<comments>http://whyfiles.org/2009/tar-sands/#comments</comments>
		<pubDate>Thu, 29 Oct 2009 20:04:39 +0000</pubDate>
		<dc:creator>admin</dc:creator>
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		<category><![CDATA[air pollution]]></category>
		<category><![CDATA[Alberta]]></category>
		<category><![CDATA[athabasca river]]></category>
		<category><![CDATA[Canada]]></category>
		<category><![CDATA[fossil fuel]]></category>
		<category><![CDATA[global warming]]></category>
		<category><![CDATA[greenhouse gases]]></category>
		<category><![CDATA[heavy oil]]></category>
		<category><![CDATA[oil sands]]></category>
		<category><![CDATA[peak oil]]></category>
		<category><![CDATA[pollution]]></category>
		<category><![CDATA[synthetic crude oil]]></category>
		<category><![CDATA[tar sands]]></category>
		<category><![CDATA[water pollution]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=3506</guid>
		<description><![CDATA[Canada's oil-drenched sands give it the second-largest oil reserves in the world. Using the "tar sands" pollutes air and water, destroys forests and could cause cancer. Should we leave oil sands alone?]]></description>
		<wfw:commentRss>http://whyfiles.org/2009/tar-sands/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Green as a garbage dump? Waste rots, makes energy…</title>
		<link>http://whyfiles.org/2008/green-as-a-garbage-dump-waste-rots-makes-energy%e2%80%a6/</link>
		<comments>http://whyfiles.org/2008/green-as-a-garbage-dump-waste-rots-makes-energy%e2%80%a6/#comments</comments>
		<pubDate>Thu, 06 Nov 2008 22:24:56 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[anaerobic digestion]]></category>
		<category><![CDATA[garbage]]></category>
		<category><![CDATA[landfill]]></category>
		<category><![CDATA[landfill gas]]></category>
		<category><![CDATA[manure]]></category>
		<category><![CDATA[methane]]></category>
		<category><![CDATA[methanogen]]></category>
		<category><![CDATA[natural gas]]></category>
		<category><![CDATA[pipeline]]></category>
		<category><![CDATA[recycling]]></category>
		<category><![CDATA[trash]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1071</guid>
		<description><![CDATA[Decay is part of life, and death. When garbage decays in a landfill, or manure decays in a tank, the result is methane. Is this natural gas a problem -- or an opportunity?]]></description>
		<wfw:commentRss>http://whyfiles.org/2008/green-as-a-garbage-dump-waste-rots-makes-energy%e2%80%a6/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Ash-crete: Concrete Process to Turn Ash into Cash!</title>
		<link>http://whyfiles.org/2006/ash-crete-new-concrete-process-could-turn-ash-into-cash/</link>
		<comments>http://whyfiles.org/2006/ash-crete-new-concrete-process-could-turn-ash-into-cash/#comments</comments>
		<pubDate>Thu, 08 Jun 2006 20:31:08 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
				<category><![CDATA[Abilities of technological design]]></category>
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		<category><![CDATA[Grades 5-8]]></category>
		<category><![CDATA[Grades 9-12]]></category>
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		<category><![CDATA[Science and technology in society]]></category>
		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[bottom ash]]></category>
		<category><![CDATA[coal ash]]></category>
		<category><![CDATA[concrete]]></category>
		<category><![CDATA[fly ash]]></category>
		<category><![CDATA[landfill]]></category>
		<category><![CDATA[recycling]]></category>
		<category><![CDATA[resonant compaction]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=896</guid>
		<description><![CDATA[Coal ash is a giant garbage problem. Should we recycle more ash into concrete? A new process might save cement, rock, and landfill space.]]></description>
		<wfw:commentRss>http://whyfiles.org/2006/ash-crete-new-concrete-process-could-turn-ash-into-cash/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Katrina&#8217;s Whirlwind: Could Marshes Slow the Floods?</title>
		<link>http://whyfiles.org/2005/whirlwind-brings-flood/</link>
		<comments>http://whyfiles.org/2005/whirlwind-brings-flood/#comments</comments>
		<pubDate>Thu, 22 Sep 2005 20:44:52 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Natural hazards]]></category>
		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
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		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[Gulf Coast]]></category>
		<category><![CDATA[hurricanes]]></category>
		<category><![CDATA[hurricanes intensity]]></category>
		<category><![CDATA[natural solutions]]></category>
		<category><![CDATA[New Orleans]]></category>
		<category><![CDATA[restore barrier islands]]></category>
		<category><![CDATA[restore wetlands]]></category>
		<category><![CDATA[sea level rising]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=846</guid>
		<description><![CDATA[As New Orleans sinks and the seas rise, hurricanes are getting worse. Does it make sense to start restoring marshes and barrier islands that dampen the hurricanes? Could wetlands moderate the next Katrina?]]></description>
		<wfw:commentRss>http://whyfiles.org/2005/whirlwind-brings-flood/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Mercury Pollution: How to Respond</title>
		<link>http://whyfiles.org/2004/mercury-pollution/</link>
		<comments>http://whyfiles.org/2004/mercury-pollution/#comments</comments>
		<pubDate>Thu, 06 May 2004 18:27:03 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[air pollution regulation]]></category>
		<category><![CDATA[air pollution science]]></category>
		<category><![CDATA[birth defects]]></category>
		<category><![CDATA[Bush Administration]]></category>
		<category><![CDATA[Environmental Protection Agency]]></category>
		<category><![CDATA[Faeroes]]></category>
		<category><![CDATA[fish advisories]]></category>
		<category><![CDATA[health effects of mercury]]></category>
		<category><![CDATA[mercury air pollution]]></category>
		<category><![CDATA[New Zealand studies]]></category>
		<category><![CDATA[Seychelles]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=629</guid>
		<description><![CDATA[How should we deal with mercury air pollution in air, fish and water? Why do the studies of mercury consumption not agree? What to do when the studies conflict...]]></description>
		<wfw:commentRss>http://whyfiles.org/2004/mercury-pollution/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Immigration to U.S.</title>
		<link>http://whyfiles.org/2004/immigration-to-us/</link>
		<comments>http://whyfiles.org/2004/immigration-to-us/#comments</comments>
		<pubDate>Thu, 22 Apr 2004 18:24:42 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Human Behavior]]></category>
		<category><![CDATA[Populations, resources, and environments]]></category>
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		<category><![CDATA[environmental aspects]]></category>
		<category><![CDATA[immigration and population growth]]></category>
		<category><![CDATA[immigration restriction]]></category>
		<category><![CDATA[Sierra Club]]></category>
		<category><![CDATA[U.S. immigration level]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=627</guid>
		<description><![CDATA[As Congress, president debate changes to immigration laws, we wonder if immigration-fueled population growth is an environmental issue. Should United States reduce immigration?]]></description>
		<wfw:commentRss>http://whyfiles.org/2004/immigration-to-us/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Homestake Goldmine: Science Lab?</title>
		<link>http://whyfiles.org/2003/the-homestake-goldmine/</link>
		<comments>http://whyfiles.org/2003/the-homestake-goldmine/#comments</comments>
		<pubDate>Thu, 10 Jul 2003 19:12:51 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
				<category><![CDATA[Abilities of technological design]]></category>
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		<category><![CDATA[Projects, games, etc.]]></category>
		<category><![CDATA[Science and Technology]]></category>
		<category><![CDATA[Science as Inquiry]]></category>
		<category><![CDATA[Space & astronomy]]></category>
		<category><![CDATA[The future]]></category>
		<category><![CDATA[Understanding about scientific inquiry]]></category>
		<category><![CDATA[Understandings about science and technology]]></category>
		<category><![CDATA[astrophysics]]></category>
		<category><![CDATA[cave]]></category>
		<category><![CDATA[earthquake]]></category>
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		<category><![CDATA[gold]]></category>
		<category><![CDATA[laboratory]]></category>
		<category><![CDATA[mars]]></category>
		<category><![CDATA[mine]]></category>
		<category><![CDATA[neutrino]]></category>
		<category><![CDATA[south dakota]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=811</guid>
		<description><![CDATA[An international team of scientists selected the Homestake goldmine to be the world's deepest underground lab, but the project may sink.]]></description>
		<wfw:commentRss>http://whyfiles.org/2003/the-homestake-goldmine/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Renewable Energy: Biomass Invention</title>
		<link>http://whyfiles.org/2002/renewable-energy-biomass/</link>
		<comments>http://whyfiles.org/2002/renewable-energy-biomass/#comments</comments>
		<pubDate>Fri, 30 Aug 2002 18:40:20 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[biofuel]]></category>
		<category><![CDATA[biomass fuel]]></category>
		<category><![CDATA[hydrogen economy]]></category>
		<category><![CDATA[invention]]></category>
		<category><![CDATA[renewable energy]]></category>
		<category><![CDATA[switchgrass]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=637</guid>
		<description><![CDATA[Renewable energy and the hydrogen economy get a boost from new invention.]]></description>
		<wfw:commentRss>http://whyfiles.org/2002/renewable-energy-biomass/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Photovoltaic Advance</title>
		<link>http://whyfiles.org/2002/photovoltaic-advance/</link>
		<comments>http://whyfiles.org/2002/photovoltaic-advance/#comments</comments>
		<pubDate>Thu, 28 Mar 2002 18:03:02 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[affordable]]></category>
		<category><![CDATA[cheap]]></category>
		<category><![CDATA[low cost]]></category>
		<category><![CDATA[photovoltaic (PV) cells]]></category>
		<category><![CDATA[polymer and inorganic semiconductors]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=732</guid>
		<description><![CDATA[New photovoltaic (PV) cells combine polymer and inorganic semiconductors -- could be cheaper to manufacture.]]></description>
		<wfw:commentRss>http://whyfiles.org/2002/photovoltaic-advance/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Nuclear Power: Time for a Rebirth?</title>
		<link>http://whyfiles.org/2001/nuclear-power/</link>
		<comments>http://whyfiles.org/2001/nuclear-power/#comments</comments>
		<pubDate>Fri, 13 Apr 2001 18:34:18 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Chemical reactions]]></category>
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		<category><![CDATA[Grades 5-8]]></category>
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		<category><![CDATA[Transfer of energy]]></category>
		<category><![CDATA[but is nuclear safe?]]></category>
		<category><![CDATA[nuclear power may stage a comeback in the face of electricity shortages]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=631</guid>
		<description><![CDATA[Worldwide thirst for oil, Hurricane Katrina, political instability, conservation failures add up to record demand and record prices for fuel. Can inherently "safe designs" reduce the risk of meltdown? Should we support a revival of fission power? ]]></description>
		<wfw:commentRss>http://whyfiles.org/2001/nuclear-power/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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