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	<title>The Why Files &#187; Atmospheric science</title>
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	<link>http://whyfiles.org</link>
	<description>The Science Behind The News</description>
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			<item>
		<title>No joke: Laughing gas attacks ozone!</title>
		<link>http://whyfiles.org/2009/no-joke-laughing-gas-attacks-ozone/</link>
		<comments>http://whyfiles.org/2009/no-joke-laughing-gas-attacks-ozone/#comments</comments>
		<pubDate>Thu, 03 Sep 2009 20:19:42 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[All]]></category>
		<category><![CDATA[Atmospheric science]]></category>
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		<category><![CDATA[Earth & Space]]></category>
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		<category><![CDATA[Grades 5-8]]></category>
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		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[Antarctic ozone hole]]></category>
		<category><![CDATA[laughing gas]]></category>
		<category><![CDATA[Montreal Protocol]]></category>
		<category><![CDATA[nitrous oxide]]></category>
		<category><![CDATA[ozone]]></category>
		<category><![CDATA[ozone depleting substances]]></category>
		<category><![CDATA[ozone depletion potential]]></category>
		<category><![CDATA[ozone layer]]></category>
		<category><![CDATA[stratospheric ozone]]></category>
		<category><![CDATA[ultraviolet radiation]]></category>
		<category><![CDATA[UV-B]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=2773</guid>
		<description><![CDATA[The ozone layer protects Earth from UV rays: Twenty-two years after a treaty to protect ozone, how is the layer doing? What has happened to the ozone hole above Antarctica?]]></description>
		<wfw:commentRss>http://whyfiles.org/2009/no-joke-laughing-gas-attacks-ozone/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Carbon tax or carbon trading? Can economics battle global warming?</title>
		<link>http://whyfiles.org/2008/carbon-tax-or-carbon-trading-can-economics-battle-global-warming/</link>
		<comments>http://whyfiles.org/2008/carbon-tax-or-carbon-trading-can-economics-battle-global-warming/#comments</comments>
		<pubDate>Thu, 04 Dec 2008 18:58:23 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[Social Science]]></category>
		<category><![CDATA[carbon dioxide cap-and-trade]]></category>
		<category><![CDATA[Carbon tax]]></category>
		<category><![CDATA[carbon trading]]></category>
		<category><![CDATA[economic efficacy]]></category>
		<category><![CDATA[economics]]></category>
		<category><![CDATA[emission trading]]></category>
		<category><![CDATA[Emission Trading Scheme]]></category>
		<category><![CDATA[global warming]]></category>
		<category><![CDATA[market mechanism]]></category>
		<category><![CDATA[reduce carbon pollution]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1076</guid>
		<description><![CDATA[Carbon tax or carbon trading? Can economics battle global warming? As the United Nations gets set for (another!) pow-wow on global warming, policy wonks are focusing on two mechanisms to reduce carbon pollution. Which gets more control at a lower price: carbon tax or carbon cap-and-trade?]]></description>
		<wfw:commentRss>http://whyfiles.org/2008/carbon-tax-or-carbon-trading-can-economics-battle-global-warming/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Ultimate Storm: What are hurricanes?</title>
		<link>http://whyfiles.org/2007/hurricane-science/</link>
		<comments>http://whyfiles.org/2007/hurricane-science/#comments</comments>
		<pubDate>Thu, 23 Aug 2007 21:40:03 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Energy in the earth system]]></category>
		<category><![CDATA[Environment]]></category>
		<category><![CDATA[Grades 5-8]]></category>
		<category><![CDATA[Grades 9-12]]></category>
		<category><![CDATA[Natural]]></category>
		<category><![CDATA[Natural and human-induced hazards]]></category>
		<category><![CDATA[Natural hazards]]></category>
		<category><![CDATA[Physical Science]]></category>
		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[TAP]]></category>
		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[hurricane]]></category>
		<category><![CDATA[intensity]]></category>
		<category><![CDATA[prediction]]></category>
		<category><![CDATA[tropical cyclone]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=592</guid>
		<description><![CDATA[How do they form? How do we predict their paths? How can we improve predictions?]]></description>
		<wfw:commentRss>http://whyfiles.org/2007/hurricane-science/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Winter&#8217;s Weird Weather: What&#8217;s the Cause?</title>
		<link>http://whyfiles.org/2007/weirdest-winter-weather-whats-the-cause/</link>
		<comments>http://whyfiles.org/2007/weirdest-winter-weather-whats-the-cause/#comments</comments>
		<pubDate>Thu, 11 Jan 2007 16:43:14 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[climatology]]></category>
		<category><![CDATA[El Niño]]></category>
		<category><![CDATA[global warming]]></category>
		<category><![CDATA[La Nina]]></category>
		<category><![CDATA[north atlantic oscillation]]></category>
		<category><![CDATA[Pacific Ocean]]></category>
		<category><![CDATA[warm winter weather]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=616</guid>
		<description><![CDATA[Some call it Fall. Some call it spring. But nobody in the Midwest, East Coast or Northern Europe is calling it "winter." What's up with our weather?]]></description>
		<wfw:commentRss>http://whyfiles.org/2007/weirdest-winter-weather-whats-the-cause/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Antarctic Ozone Hole Sets New Record</title>
		<link>http://whyfiles.org/2006/antarctic-ozone-hole-sets-new-record/</link>
		<comments>http://whyfiles.org/2006/antarctic-ozone-hole-sets-new-record/#comments</comments>
		<pubDate>Thu, 26 Oct 2006 14:07:27 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[2006]]></category>
		<category><![CDATA[Antarctic ozone hole]]></category>
		<category><![CDATA[arctic ozone hole]]></category>
		<category><![CDATA[chlorine]]></category>
		<category><![CDATA[hitchman]]></category>
		<category><![CDATA[microwave limb sounder]]></category>
		<category><![CDATA[ultraviolet radiation]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=925</guid>
		<description><![CDATA[Measurements show a huge ozone hole. How can this happen? We thought ozone-destroying chemicals were being phased out...]]></description>
		<wfw:commentRss>http://whyfiles.org/2006/antarctic-ozone-hole-sets-new-record/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Farming: Does it Change the Climate?</title>
		<link>http://whyfiles.org/2005/making-farms-does-it-change-the-climate/</link>
		<comments>http://whyfiles.org/2005/making-farms-does-it-change-the-climate/#comments</comments>
		<pubDate>Fri, 09 Dec 2005 04:33:04 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Grades 5-8]]></category>
		<category><![CDATA[Grades 9-12]]></category>
		<category><![CDATA[Natural and human-induced hazards]]></category>
		<category><![CDATA[Science and technology in local, national, and global c]]></category>
		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[climate]]></category>
		<category><![CDATA[computer model]]></category>
		<category><![CDATA[deforestation]]></category>
		<category><![CDATA[global warming]]></category>
		<category><![CDATA[greenhouse warming]]></category>
		<category><![CDATA[land use]]></category>
		<category><![CDATA[making farms]]></category>
		<category><![CDATA[regional climate]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=860</guid>
		<description><![CDATA[Land use: When it changes, so does the climate! The plow and the thermometer: What relationship?]]></description>
		<wfw:commentRss>http://whyfiles.org/2005/making-farms-does-it-change-the-climate/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Your Air: Breathe with Care</title>
		<link>http://whyfiles.org/2005/your-air-breathe-with-care/</link>
		<comments>http://whyfiles.org/2005/your-air-breathe-with-care/#comments</comments>
		<pubDate>Thu, 07 Apr 2005 21:36:02 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Bio brainstorms]]></category>
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		<category><![CDATA[Disease and Treatment]]></category>
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		<category><![CDATA[Environment & pollution]]></category>
		<category><![CDATA[Grades 5-8]]></category>
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		<category><![CDATA[Health]]></category>
		<category><![CDATA[Natural and human-induced hazards]]></category>
		<category><![CDATA[Personal and community health]]></category>
		<category><![CDATA[Personal health]]></category>
		<category><![CDATA[Science and technology in local, national, and global c]]></category>
		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[agriculture and antibiotic-resistant bacteria]]></category>
		<category><![CDATA[air particles]]></category>
		<category><![CDATA[asthma]]></category>
		<category><![CDATA[damp buildings]]></category>
		<category><![CDATA[indoor air quality]]></category>
		<category><![CDATA[mold]]></category>
		<category><![CDATA[particulate pollution]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=660</guid>
		<description><![CDATA[Farms release airborne, drug-resistant bacteria, and indoor air could be making you sick. More news about the particles we breathe every day.]]></description>
		<wfw:commentRss>http://whyfiles.org/2005/your-air-breathe-with-care/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Climate Change: It Can Happen Fast!</title>
		<link>http://whyfiles.org/2004/climate-change/</link>
		<comments>http://whyfiles.org/2004/climate-change/#comments</comments>
		<pubDate>Wed, 30 Jun 2004 19:36:49 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[abrupt climate change]]></category>
		<category><![CDATA[ancient climate]]></category>
		<category><![CDATA[climate feedback]]></category>
		<category><![CDATA[Day After Tomorrow]]></category>
		<category><![CDATA[methane hydrate]]></category>
		<category><![CDATA[Movie]]></category>
		<category><![CDATA[new ice age]]></category>
		<category><![CDATA[ocean conveyor]]></category>
		<category><![CDATA[rapid global warming]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=813</guid>
		<description><![CDATA[Evidence from ice cores in Greenland and Antarctica show how fast the climate has changed in the past. In this era of global warming, you can't count on a slow, gradual, predictable warming.]]></description>
		<wfw:commentRss>http://whyfiles.org/2004/climate-change/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Tornadoes: Power &amp; Fury</title>
		<link>http://whyfiles.org/2003/tornadoes-power-fury/</link>
		<comments>http://whyfiles.org/2003/tornadoes-power-fury/#comments</comments>
		<pubDate>Mon, 12 May 2003 16:27:19 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Motions and forces]]></category>
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		<category><![CDATA[Transfer of energy]]></category>
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		<category><![CDATA[energy sources]]></category>
		<category><![CDATA[strong house]]></category>
		<category><![CDATA[tornado]]></category>
		<category><![CDATA[tornado safety]]></category>
		<category><![CDATA[warning]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=604</guid>
		<description><![CDATA[Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy?]]></description>
		<wfw:commentRss>http://whyfiles.org/2003/tornadoes-power-fury/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Shuttle Discoveries</title>
		<link>http://whyfiles.org/2003/shuttle-discoveries/</link>
		<comments>http://whyfiles.org/2003/shuttle-discoveries/#comments</comments>
		<pubDate>Thu, 06 Feb 2003 16:20:44 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Columbia]]></category>
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		<category><![CDATA[space]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=599</guid>
		<description><![CDATA[What was learned on Columbia's last, tragic mission?]]></description>
		<wfw:commentRss>http://whyfiles.org/2003/shuttle-discoveries/feed/</wfw:commentRss>
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