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	<title>The Why Files &#187; Earth Science</title>
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	<link>http://whyfiles.org</link>
	<description>The Science Behind The News</description>
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		<title>Planetary limits: More than just global warming</title>
		<link>http://whyfiles.org/2009/planetary-limits-more-than-just-global-warming/</link>
		<comments>http://whyfiles.org/2009/planetary-limits-more-than-just-global-warming/#comments</comments>
		<pubDate>Thu, 01 Oct 2009 22:04:31 +0000</pubDate>
		<dc:creator>admin</dc:creator>
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		<category><![CDATA[In The News]]></category>
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		<category><![CDATA[Science and technology in local, national, and global c]]></category>
		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[air pollution]]></category>
		<category><![CDATA[biodiversity loss]]></category>
		<category><![CDATA[chemical pollution]]></category>
		<category><![CDATA[exceeding planetary boundaries could block key ecosystem services: climate change]]></category>
		<category><![CDATA[fertilizer use]]></category>
		<category><![CDATA[freshwater use]]></category>
		<category><![CDATA[land use]]></category>
		<category><![CDATA[ocean acidification]]></category>
		<category><![CDATA[ozone loss]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=2842</guid>
		<description><![CDATA[Scientists propose 9 limits on human actions: Wrecking ozone, over-using fertilizer, killing species could block key "ecosystem services." Are there natural limits to fresh water use and pollution?]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<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>
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		<category><![CDATA[Science and technology in local, national, and global c]]></category>
		<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>&#8220;No prob&#8221; sez life to crashing asteroids!</title>
		<link>http://whyfiles.org/2009/crashing-asteroids/</link>
		<comments>http://whyfiles.org/2009/crashing-asteroids/#comments</comments>
		<pubDate>Thu, 21 May 2009 19:50:43 +0000</pubDate>
		<dc:creator>admin</dc:creator>
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		<category><![CDATA[Earth in the solar system]]></category>
		<category><![CDATA[Grades 5-8]]></category>
		<category><![CDATA[Grades 9-12]]></category>
		<category><![CDATA[History and Nature of Science]]></category>
		<category><![CDATA[History of science]]></category>
		<category><![CDATA[Life Science]]></category>
		<category><![CDATA[Microworld]]></category>
		<category><![CDATA[Origin and evolution of the earth system]]></category>
		<category><![CDATA[Understandings about science and technology]]></category>
		<category><![CDATA[asteroid impact]]></category>
		<category><![CDATA[early life]]></category>
		<category><![CDATA[geologic bacteria]]></category>
		<category><![CDATA[Hadean eon]]></category>
		<category><![CDATA[high-temperature bacteria]]></category>
		<category><![CDATA[hyperthermophile]]></category>
		<category><![CDATA[late heavy bombardment]]></category>
		<category><![CDATA[origin of life]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1938</guid>
		<description><![CDATA[The "late heavy bombardment" burned out any life that was around 4 billion years ago -- or not... Plenty of high temperature bacteria could have survived in deep rocks, says a new study.]]></description>
		<wfw:commentRss>http://whyfiles.org/2009/crashing-asteroids/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>New concern as ocean grows more acidic</title>
		<link>http://whyfiles.org/2008/new-concern-as-ocean-grows-more-acidic/</link>
		<comments>http://whyfiles.org/2008/new-concern-as-ocean-grows-more-acidic/#comments</comments>
		<pubDate>Thu, 13 Nov 2008 21:18:49 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Science in Personal and Social Perspectives]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[carbon dioxide]]></category>
		<category><![CDATA[dolphins]]></category>
		<category><![CDATA[fossil fuel pollution]]></category>
		<category><![CDATA[global warming]]></category>
		<category><![CDATA[greenhouse gas]]></category>
		<category><![CDATA[marine mammals]]></category>
		<category><![CDATA[noise]]></category>
		<category><![CDATA[ocean acidification]]></category>
		<category><![CDATA[ocean acidity]]></category>
		<category><![CDATA[sonar]]></category>
		<category><![CDATA[sound]]></category>
		<category><![CDATA[stranding]]></category>
		<category><![CDATA[whales]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1072</guid>
		<description><![CDATA[Each hour,  the ocean dissolves 1 million tons of carbon dioxide from burning fossil fuel. As the water grows more acidic, sound travels further. What will happen to marine mammals, which rely on an exquisite sense of hearing?]]></description>
		<wfw:commentRss>http://whyfiles.org/2008/new-concern-as-ocean-grows-more-acidic/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Earthquake safety: It begins at home</title>
		<link>http://whyfiles.org/2008/earthquake-safety-it-begins-at-home/</link>
		<comments>http://whyfiles.org/2008/earthquake-safety-it-begins-at-home/#comments</comments>
		<pubDate>Thu, 22 May 2008 19:35:17 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[China]]></category>
		<category><![CDATA[collapsing houses]]></category>
		<category><![CDATA[collapsing schools]]></category>
		<category><![CDATA[concrete buildings]]></category>
		<category><![CDATA[earthquake engineering]]></category>
		<category><![CDATA[earthquake hazard zones]]></category>
		<category><![CDATA[earthquake hazards]]></category>
		<category><![CDATA[good building practices]]></category>
		<category><![CDATA[Sichuan earthquake]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1050</guid>
		<description><![CDATA[Hundreds of millions live and work in houses and schools that will collapse when the earth starts quaking.  The lesson from California, where big quakes cause small death tolls, is this: Smart engineering can save lives.]]></description>
		<wfw:commentRss>http://whyfiles.org/2008/earthquake-safety-it-begins-at-home/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Looking anew at diamonds</title>
		<link>http://whyfiles.org/2008/looking-anew-at-diamonds/</link>
		<comments>http://whyfiles.org/2008/looking-anew-at-diamonds/#comments</comments>
		<pubDate>Thu, 10 Jan 2008 21:32:04 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Origin and evolution of the earth system]]></category>
		<category><![CDATA[Structure of the earth system]]></category>
		<category><![CDATA[blue diamond]]></category>
		<category><![CDATA[conflict diamond]]></category>
		<category><![CDATA[fingerprint]]></category>
		<category><![CDATA[Hope diamond]]></category>
		<category><![CDATA[phosphorescence]]></category>
		<category><![CDATA[red]]></category>
		<category><![CDATA[spectroscopic]]></category>
		<category><![CDATA[spectroscopy]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1032</guid>
		<description><![CDATA[New analysis uses light to distinguish one diamond from another. Technique may help jewelers, but won't help the battle against the "conflict diamonds" that are fueling wars in Africa.]]></description>
		<wfw:commentRss>http://whyfiles.org/2008/looking-anew-at-diamonds/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[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[Antarctic ozone hole]]></category>
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		<category><![CDATA[chlorine]]></category>
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		<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>Katrina + 1: Where Should We Rebuild?</title>
		<link>http://whyfiles.org/2006/katrina-1-where-should-we-rebuild/</link>
		<comments>http://whyfiles.org/2006/katrina-1-where-should-we-rebuild/#comments</comments>
		<pubDate>Thu, 24 Aug 2006 22:14:08 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
				<category><![CDATA[Abilities of technological design]]></category>
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		<category><![CDATA[building in harm's way]]></category>
		<category><![CDATA[floodplain development]]></category>
		<category><![CDATA[floodplain management]]></category>
		<category><![CDATA[floods]]></category>
		<category><![CDATA[hurricanes]]></category>
		<category><![CDATA[Katrina aftermath]]></category>
		<category><![CDATA[mitigation]]></category>
		<category><![CDATA[zoning]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=912</guid>
		<description><![CDATA[It's a fact of life: Hurricanes and floods happen. So why are people rebuilding in the path of storms and floods? Is there a smarter way to plan development?]]></description>
		<wfw:commentRss>http://whyfiles.org/2006/katrina-1-where-should-we-rebuild/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>NASA to Earth Science: Take the Back Seat!</title>
		<link>http://whyfiles.org/2006/nasa-to-earth-science-take-the-back-seat/</link>
		<comments>http://whyfiles.org/2006/nasa-to-earth-science-take-the-back-seat/#comments</comments>
		<pubDate>Thu, 03 Aug 2006 21:12:52 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[photosynthesis]]></category>
		<category><![CDATA[understand and protect home planet]]></category>
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		<guid isPermaLink="false">http://whyfiles.org/?p=907</guid>
		<description><![CDATA[To understand and protect the home planet: it's no longer a key NASA mission. What will we lose as NASA turns its eyes toward the moon and Mars?]]></description>
		<wfw:commentRss>http://whyfiles.org/2006/nasa-to-earth-science-take-the-back-seat/feed/</wfw:commentRss>
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