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<channel>
	<title>Science News Review &#187; Ecosystems</title>
	<atom:link href="http://www.sciencenewsreview.com/category/ecosystems/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.sciencenewsreview.com</link>
	<description>A fun look at science news</description>
	<lastBuildDate>Mon, 16 Nov 2009 17:05:56 +0000</lastBuildDate>
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			<item>
		<title>Intersex Fish and Water Pollution</title>
		<link>http://www.sciencenewsreview.com/intersex-fish-and-water-pollution/</link>
		<comments>http://www.sciencenewsreview.com/intersex-fish-and-water-pollution/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 17:53:44 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Contamination]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Environment]]></category>
		<category><![CDATA[Farming]]></category>
		<category><![CDATA[Hormones]]></category>
		<category><![CDATA[Hormone Disrupters]]></category>
		<category><![CDATA[Water Pollution]]></category>
		<category><![CDATA[Wild Fish]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/?p=167</guid>
		<description><![CDATA[Back in February of 2008 the U.S. Geological Survey [USGS] conducted research on smallmouth bass in the Potomac River basin, finding that 80-100% of the fish collected from the Shenandoah were intersex. Meaning that males of the species had testicular oocytes [TO], or immature female egg cells in the testes.
The USGS researchers also documented that [...]]]></description>
			<content:encoded><![CDATA[<p>Back in February of 2008 the <a href="http://www.sciencedaily.com/releases/2008/02/080208115302.htm">U.S. Geological Survey</a> [USGS] conducted research on smallmouth bass in the Potomac River basin, finding that 80-100% of the fish collected from the Shenandoah were intersex. Meaning that males of the species had testicular oocytes [TO], or immature female egg cells in the testes.</p>
<p>The USGS researchers also documented that the highest prevalence of TO came attached to areas with the highest human populations and most intensive farming activity. This type of birth defect is connected to environmental exposures to endocrine disrupters (hormone precursors that affect the endocrine system), which are found in most agricultural pesticides, herbicides and fertilizers, and in many human/animal drugs. The prevalence of intersex had been at that time documented in other wild fish populations, including spot-tail shiners in the St. Lawrence, white suckers in Colorado, shovelnose sturgeon in the Mississippi, white perch in the Great Lakes, and in several species in the UK, Europe, Africa and Japan.</p>
<p>Intersex associated with endocrine disrupters in wastewater and farm runoff is nothing new, as reproductive anomalies in amphibians has been on the rise especially in farming regions for decades. Now the USGS has published new results of research on <a href="http://www.sciencedaily.com/releases/2009/09/090914172648.htm">intersex in bass</a> in the journal <i>Aquatic Toxicology.</i> They found that a third of all male smallmouth bass and a fifth of all male largemouth bass tested were intersex. The fish came from many different rivers and basins, including the Apalachicola, Colorado, Columbia, Rio Grande, Savannah, Pee Dee and Yukon. The Yukon is the only river basin where researchers found no intersex fish.</p>
<p>The Pee Dee river basin appears to have the biggest problem, though intersex bass are prevalent throughout the agricultural southeast. Relatively high incidence of intersex was also found in the lower Rio Grande basin, the Colorado and Gila in Arizona, and the Colorado basin. Lead author and USGS biologist Jo Ellen Hink suggested that &#8220;the widespread occurrence of intersex in fish would be a critical environmental concern.&#8221;</p>
<p>Well, duh. Any prognostications on when (or if) EPA and the USDA might get around to being critically concerned about it? Will &#8220;Intersex&#8221; become the new macho?</p>
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		<title>The &#8216;08 Farm Bill and Improving America&#8217;s Diet</title>
		<link>http://www.sciencenewsreview.com/the-08-farm-bill-and-improving-americas-diet/</link>
		<comments>http://www.sciencenewsreview.com/the-08-farm-bill-and-improving-americas-diet/#comments</comments>
		<pubDate>Mon, 02 Jun 2008 16:06:33 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[Biofuels]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Ecology]]></category>
		<category><![CDATA[Economics]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Environment]]></category>
		<category><![CDATA[Farming]]></category>
		<category><![CDATA[Medical Research]]></category>
		<category><![CDATA[Nutrition]]></category>
		<category><![CDATA[Politics]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Biofuel Crops]]></category>
		<category><![CDATA[Diet]]></category>
		<category><![CDATA[Farm Bill]]></category>
		<category><![CDATA[Farm Subsidies]]></category>
		<category><![CDATA[Organic Farming]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/the-08-farm-bill-and-improving-americas-diet/</guid>
		<description><![CDATA[ 
The 2007 Farm Bill &#8211; now the 2008 Farm Bill, was passed by both chambers of Congress, vetoed by President Bush, then the veto was overridden by both houses and is now the &#8216;Law of the Land&#8217;. Politically, the bill isn&#8217;t perfect, there is still too much pork and payments to rich agribusiness concerns [...]]]></description>
			<content:encoded><![CDATA[<div style="float: right; margin-left: 10px; margin-bottom: 05px"> <img src="http://farm4.static.flickr.com/3259/2545551180_5bab13bbbe_m.jpg" alt="fruitveggies" /></div>
<p>The 2007 Farm Bill &#8211; now the <a href="http://agriculture.house.gov/inside/FarmBill.html">2008 Farm Bill</a>, was passed by both chambers of Congress, vetoed by President Bush, then the veto was overridden by both houses and is now the &#8216;Law of the Land&#8217;. Politically, the bill isn&#8217;t perfect, there is still too much pork and payments to rich agribusiness concerns for their poor farming practices, and not enough clarifying guidelines for biofuels production and organic farming.</p>
<p>But it&#8217;s a lot better than no bill at all, which would have kept the last support bill in place for the foreseeable future. The new bill has incentives to clean up residue discharges in important watersheds, and supports for best practices in crop rotations, cover crops and low-chemical input farming. It&#8217;s still strong on commodity production (corn, wheat, rice), but does put some real support into farmer&#8217;s market promotions and expansion of organic markets. It does somewhat limit subsidies to near-millionaire commodity farmers, requires more fresh fruit and vegetables to be available in schools, increases food stamp benefits as tied to the price of food, allots priority funding to research into the bee die-off situation, and supports rural enterprise and microenterprise investments.</p>
<p>Research into the &#8220;typical American diet&#8221; and its relationship to serious health issues and obesity informs us that Americans eat way too much junk and not nearly enough healthy food. Which, in a country that rations health care by income level and allows insurance companies to exclude people who actually need health care, would seem to be an important issue to address with education and real food availability in public institutions such as schools.<br />
<span id="more-68"></span><br />
In 2005 the University of Michigan&#8217;s <a href="http://www.sciencedaily.com/releases/2005/03/050309133427.htm">Integrative Medicine Clinical Services</a> published a new food pyramid based on &#8220;healing&#8221; foods. Which emphasized fresh, unprocessed fruits and vegetables over grains, legumes (beans) and the more fatty foods at the top. The <a href="http://www.sciencedaily.com/releases/2008/05/080527121104.htm">Agricultural Research Service</a> published this past weekend a study that showed alkaline-producing fresh fruits and vegetables help preserve muscle mass in older men and women.</p>
<p>And researchers from USDA&#8217;s Sustainable Agricultural Systems Laboratory have released findings that demonstrate <a href="http://www.sciencedaily.com/releases/2008/05/080528102904.htm">organic farming methods</a> including crop rotation complexity can offer a 30% greater yield than simple corn-soybean rotations.</p>
<p>As demand for organic meat, milk and basic commodities rises about 20% per year in this country, improvements in the technology of organic production will serve to increase availability. It has long been known that reduced use of herbicides, pesticides and chemical fertilizers (most with highly questionable &#8216;inert ingredients&#8217; such as toxic waste from industry) will also improve water quality and the general fertility of our &#8216;breadbasket&#8217; agricultural base land. It is hoped that the new farm bill, by emphasizing changes that need to be made in these directions, will speed America&#8217;s switch to sustainable practices and improve citizen&#8217;s health significantly.</p>
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		<title>Where Have All the Salmon Gone?</title>
		<link>http://www.sciencenewsreview.com/where-have-all-the-salmon-gone/</link>
		<comments>http://www.sciencenewsreview.com/where-have-all-the-salmon-gone/#comments</comments>
		<pubDate>Mon, 05 May 2008 16:40:16 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Farming]]></category>
		<category><![CDATA[Global Warming]]></category>
		<category><![CDATA[Oceans]]></category>
		<category><![CDATA[Fisheries Collapse]]></category>
		<category><![CDATA[Global Food Crisis]]></category>
		<category><![CDATA[Salmon Farming]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/where-have-all-the-salmon-gone/</guid>
		<description><![CDATA[ 
A declaration of commercial fishery failure by Commerce Secretary Carlos Gutierrez has paved the way for Congress to allot funds for alleviating financial hardship among the West Coast&#8217;s commercial Chinook salmon fishing industry off California and Oregon. The crisis has been building steadily every year since 2000, culminating in this latest action &#8211; the [...]]]></description>
			<content:encoded><![CDATA[<div style="float: right; margin-left: 10px; margin-bottom: 05px"> <img src="http://farm4.static.flickr.com/3058/2468377690_845b894232_m.jpg" alt="Salmon" /></div>
<p>A declaration of commercial fishery failure by Commerce Secretary Carlos Gutierrez has paved the way for Congress to allot funds for alleviating financial hardship among the West Coast&#8217;s commercial Chinook salmon fishing industry off California and Oregon. The crisis has been building steadily every year since 2000, culminating in this latest action &#8211; the commercial salmon fishing industry has essentially been shut down.</p>
<p>National Oceanographic and Atmospheric Administration [NOAA] researchers suggest that <a href="http://www.sciencedaily.com/releases/2008/05/080502120306.htm">changes in ocean conditions</a> &#8211; possibly due to global warming &#8211; are to blame, along with loss of freshwater habitat for salmon spawning, a chronic problem.</p>
<p>There will be some coho salmon fishing allowed off the coast of Washington and northern Oregon, but there will be financial hardship in that industry as well due to strict limits. This crisis has been building for years, attempts along the way to mitigate it have proven to exacerbate the situation, such as the introduction of farmed salmon. Fish stock collapses in traditionally abundant fisheries  off both coasts and elsewhere in the world bode ill for the seafood component of the human food supply, just as the worldwide food crisis heats up around the world for staple crops like corn and wheat and rice.</p>
<p>We could be beyond a tipping point right now, and things could get a bit more than just &#8216;interesting&#8217; over the next months. Will science be able to come to the rescue, or will it remain helpless to mitigate the collapse of world food supplies? Stay tuned&#8230;</p>
<p><b>Links:</b></p>
<p><a href="http://www.sciencedaily.com/releases/2008/05/080502120306.htm">&#8220;Fishery Failure&#8221; Declared for West Coast Salmon Fishery</a><br />
<a href="http://www.sciencedaily.com/releases/2008/04/080403125221.htm">Hatchery Controversy Takes on New Significance as Wild Chinook Populations Crash</a><br />
<a href="http://www.sciencedaily.com/releases/2006/02/060213091230.htm">Escaped Farmed Salmon Infiltrate Fitter Wild Populations</a><br />
<a href="http://www.sciencedaily.com/releases/2008/02/080212085841.htm">Dramatic Declines in Wild Salmon Populations Linked to Farmed Salmon</a></p>
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		<title>Biotech Propaganda Meets Scientific Reality</title>
		<link>http://www.sciencenewsreview.com/biotech-propaganda-meets-scientific-reality/</link>
		<comments>http://www.sciencenewsreview.com/biotech-propaganda-meets-scientific-reality/#comments</comments>
		<pubDate>Tue, 29 Apr 2008 18:45:07 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[Biotech]]></category>
		<category><![CDATA[Bt Crops]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Controversy]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Genetic Engineering]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Science Policy]]></category>
		<category><![CDATA[Food Policy]]></category>
		<category><![CDATA[GM Crops]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/biotech-propaganda-meets-scientific-reality/</guid>
		<description><![CDATA[ 
In its mad bid to privatize and control the world&#8217;s agriculture and food supply with its patented biotech seeds and cushy revolving door within governmental regulatory agencies, Monsanto cannot be very happy with a recent Soil Association report that shows GM crops decrease yields, whether it&#8217;s cotton or soybeans or corn.
As reported in The [...]]]></description>
			<content:encoded><![CDATA[<div style="float: left; margin-right: 10px; margin-bottom: 05px"> <img src="http://farm3.static.flickr.com/2057/2451863949_169749ef3e_m.jpg" alt="Monsanto" /></div>
<p>In its mad bid to privatize and control the world&#8217;s agriculture and food supply with its patented biotech seeds and cushy revolving door within governmental regulatory agencies, Monsanto cannot be very happy with a recent Soil Association report that shows <a href="http://www.soilassociation.org/web/sa/saweb.nsf/848d689047cb466780256a6b00298980/3cacfd251aab6d318025742700407f02!OpenDocument">GM crops decrease yields</a>, whether it&#8217;s cotton or soybeans or corn.</p>
<p>As reported in <a href="http://www.washingtonpost.com/wp-dyn/content/article/2008/02/13/AR2008021303639.html">The Washington Post</a>, the biotech industry immediately released yet another bought-and-paid-for report claiming totally opposite conclusions (some things don&#8217;t change just because the science is against you). The Soil Association report took a serious look at reality, something quite refreshing in this field. The material included among other citations:</p>
<p>• a 2007 study from Kansas State University that showed Roundup Ready soy has suffered &#8220;yield drag&#8221; since it was introduced, producing an average of 9-25% less per acre than conventional soy.</p>
<p>• a rigorous independent US study under controlled conditions demonstrating that Bt corn yields up to 12% less than conventional corn.</p>
<p>• an article in <i>Nature Biotechnology</i> reporting that Bt cotton doesn&#8217;t even express the engineered pesticide in 25% of some varieties sold under exclusive license.</p>
<p>The crop failures and their tragic effects on farmers in poorer nations may be a product of the technology itself according to <a href="http://prismwebcastnews.com/pwn/?p=2398">some analysts</a>.<br />
<span id="more-61"></span><br />
US scientists have finally <a href="http://www.sciencedaily.com/releases/2008/04/080424140413.htm">called for more access to biotech crop data</a> so they can perform studies to assess environmental impacts of the technology as well. Indications are that herbicide resistance has increased herbicide usage (polluting land and water), led to pest immunity (with increased crop losses), creates &#8220;superweeds&#8221; from wild relatives that are hard to eradicate, and may even have something to do with massive die-offs of bees in recent years.</p>
<p>A quote from Michelle Marvier of Santa Clara University in the ag-dependent state of California pretty much sums up the situation -</p>
<p><i>&#8220;Since 1996 more than a billion acres have been planted with biotech crops in the U.S. <b>We don&#8217;t really know what are the pros and cons of this important new agricultural technology.&#8221;</b></i></p>
<p>Huh. I thought these are just the sort of things USDA and the FDA were supposed to find out before the technology was deployed on such a massive scale. Who could have guessed that allowing corporate control of law, policy and regulatory oversight might lead to bad law, policy and regulatory oversight? Oops&#8230;</p>
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		<title>World&#8217;s Oldest Tree is a Spruce in Sweden</title>
		<link>http://www.sciencenewsreview.com/worlds-oldest-tree-is-a-spruce-in-sweden/</link>
		<comments>http://www.sciencenewsreview.com/worlds-oldest-tree-is-a-spruce-in-sweden/#comments</comments>
		<pubDate>Mon, 21 Apr 2008 21:17:12 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[Botany]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Genetics]]></category>
		<category><![CDATA[Odd Facts]]></category>
		<category><![CDATA[C-14 Dating]]></category>
		<category><![CDATA[Oldest Tree]]></category>
		<category><![CDATA[Sweden]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/worlds-oldest-tree-is-a-spruce-in-sweden/</guid>
		<description><![CDATA[ 
Most school children have at one time or another encountered a photo of a twisted bristlecone pine tree in California purporting to have begun its life before Abraham left Ur [the 'Methuselah' tree at ~4767 years old]. Science Daily reported last week that a spruce tree has been discovered in the Dalarna province of [...]]]></description>
			<content:encoded><![CDATA[<div style="float: right; margin-left: 10px; margin-bottom: 05px"> <img src="http://farm3.static.flickr.com/2340/2431466161_97a27c41d6_m.jpg" alt="OldSpruce" /></div>
<p>Most school children have at one time or another encountered a photo of a twisted bristlecone pine tree in California purporting to have begun its life before Abraham left Ur [the 'Methuselah' tree at ~4767 years old]. <a href="http://www.sciencedaily.com/releases/2008/04/080416104320.htm">Science Daily reported</a> last week that a spruce tree has been discovered in the Dalarna province of Sweden that is twice that age!</p>
<p>Yes, this not very old-looking little tree has been dated by researchers at Umeå University&#8217;s physical geography department at ~9550 years old. Just as interesting is that this ancient tree is a genetically identical clone of a previous tree &#8211; from whose roots it sprouted all those many years ago &#8211; and which left a few scraps of old wood in the area for researchers to analyze and a laboratory in Miami, Florida to date via C-14.</p>
<p>Researchers combing the Swedish mountains from Lapland to Dalarna have discovered a cluster of about 20 spruces that are all more than 8,000 years old. Which has to qualify the grove as the most ancient stand of virgin timber on the planet.</p>
<p><a href="http://www.sciencedaily.com/releases/2008/04/080416104320.htm">World&#8217;s Oldest Living Tree</a></p>
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		<title>Giant Antarctic Sea Creatures!</title>
		<link>http://www.sciencenewsreview.com/giant-antarctic-sea-creatures/</link>
		<comments>http://www.sciencenewsreview.com/giant-antarctic-sea-creatures/#comments</comments>
		<pubDate>Mon, 24 Mar 2008 19:34:19 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Global Warming]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Antarctic]]></category>
		<category><![CDATA[Gigantism]]></category>
		<category><![CDATA[Ocean Acidification]]></category>
		<category><![CDATA[Sea Life]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/giant-antarctic-sea-creatures/</guid>
		<description><![CDATA[ 
Photo by John Mitchell &#8211; Antarctic explorers Sadie Mills and Niki Davey holding giant Macroptychaster sea stars.
During an 8-week survey expedition to the Antarctic Ross Sea south of New Zealand, researchers discovered a host of giant sea creatures. In addition to the starfish pictured above, there were &#8220;&#8230;huge worms, giant crustaceans and sea spiders [...]]]></description>
			<content:encoded><![CDATA[<div style="float: left; margin-right: 10px; margin-bottom: 05px"> <img src="http://farm4.static.flickr.com/3142/2358242045_e25f764460_m.jpg" alt="starfish" /></div>
<p><i>Photo by John Mitchell &#8211; Antarctic explorers Sadie Mills and Niki Davey holding giant Macroptychaster sea stars.</i></p>
<p>During an 8-week survey expedition to the Antarctic Ross Sea south of New Zealand, researchers discovered a host of giant sea creatures. In addition to the starfish pictured above, there were &#8220;&#8230;huge worms, giant crustaceans and sea spiders the size of dinner plates,&#8221; according to Dr. Martin Riddle, leader of the <i>Aurora Australis</i> expedition.</p>
<p>The expedition collected some 30,000 specimens &#8211; including jellyfish with 12-foot tentacles &#8211; hundreds of which may be new to science. Riddle attributed the large size of polar species to cold water temperatures, few predators, high oxygen levels and longevity.</p>
<p>The expedition was a project of the International Polar Year program, where experts from 23 countries expect to mount 10 more expeditions to examine Antarctic sea life. The specimens collected so far will take a couple of years to fully categorize. It is hoped that the project&#8217;s cataloguing of Antarctic ocean biodiversity will help scientists monitor the impact of environmental change, as Antarctic waters should be among the first to respond to ocean acidification caused by rising atmospheric carbon dioxide levels.</p>
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		<title>10 Earth Science Questions for the 21st Century</title>
		<link>http://www.sciencenewsreview.com/10-earth-science-questions-for-the-21st-century/</link>
		<comments>http://www.sciencenewsreview.com/10-earth-science-questions-for-the-21st-century/#comments</comments>
		<pubDate>Sat, 15 Mar 2008 17:26:32 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Astrobiology]]></category>
		<category><![CDATA[Biology]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Evolution]]></category>
		<category><![CDATA[Global Warming]]></category>
		<category><![CDATA[Oceans]]></category>
		<category><![CDATA[Origin of Life]]></category>
		<category><![CDATA[Planetary Science]]></category>
		<category><![CDATA[Science Policy]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/10-earth-science-questions-for-the-21st-century/</guid>
		<description><![CDATA[ 
The National Research Council has identified and reported on Ten Questions that will shape 21st century earth science. Some may be a little surprised that these questions are still unanswered, having been told in no uncertain terms in science classes in the last century that science already had definitive answers to questions like how [...]]]></description>
			<content:encoded><![CDATA[<div style="float: left; margin-right: 10px; margin-bottom: 05px"> <img src="http://farm4.static.flickr.com/3133/2334714313_e778fecc9f_m.jpg" alt="NASA_EarthMars" /></div>
<p>The National Research Council has identified and reported on <a href="http://www.sciencedaily.com/releases/2008/03/080312115423.htm">Ten Questions</a> that will shape 21st century earth science. Some may be a little surprised that these questions are still unanswered, having been told in no uncertain terms in science classes in the last century that science already had definitive answers to questions like how the earth and other planets in our solar system formed. Live and learn. Here&#8217;s a bare list of the identified questions&#8230;</p>
<p><b>1. How did earth and other planets form?</b><br />
Scientists still do not know enough about how our planet got its elements to understand its evolution, or why other planets in our system are very different.</p>
<p><b>2. What happened during the first 500 million years?</b><br />
Current scientific belief is that another planet collided with ours during the late formation stage, creating the moon and melting this planet all the way to its core. Yet unknown is how (and when) the Earth developed its atmosphere and oceans.</p>
<p><b>3. How did life begin?</b><br />
Scientists hope to obtain evidence from rocks and minerals, as well as investigations of Mars and other members of our system.</p>
<p><span id="more-50"></span></p>
<p><b>4. How does earth&#8217;s interior work, and how does it effect the surface?</b><br />
Science still cannot precisely describe the magnetic field-producing convection currents in the mantle and core, which means they have not yet modeled past evolution and cannot predict future evolution of the surface environment.</p>
<p><b>5. Why does earth have plate tectonics and continents?</b><br />
Scientists still do not know when continents first formed, how they were preserved for billions of years, or how they will evolve in the future.</p>
<p><b>6. How are earth processes controlled by material properties?</b><br />
Scientists hope to gain more understanding of plate tectonics and mantle convection by reducing the macroprocesses down to the atomic microscale. It is hoped this will allow prediction.</p>
<p><b>7. What causes climate to change &#8211; and how much can it change?</b><br />
Study of our planet&#8217;s past climate extremes may lead to improved models that can predict the magnitude and consequences of climate change.</p>
<p><b>8. How has life shaped earth &#8211; and how has earth shaped life></b><br />
The ways that geology and biology influence each other are still unknown, though scientists do suspect life had a role in oxygenating the atmosphere, and know of geological events that caused mass extinctions.</p>
<p><b>9. Can earthquakes, volcanic eruptions and their consequences be predicted?</b><br />
Scientists admit they may never be able to accurately predict earthquakes, but are getting better at predicting volcanic eruptions. Knowledge of the mantle movements could help.</p>
<p><b>10. How do fluid flow and transport affect the human environment?</b><br />
Scientists hope to produce mathematical models that can predict the performance of natural fluid systems (surface and underground water, primarily), to contribute to better human management of natural resources and the environment.</p>
<p><b>Link:</b><br />
<a href="http://www.sciencedaily.com/releases/2008/03/080312115423.htm">Ten Questions</a></p>
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		<title>Uneven Ecological and Economic Impacts of Rich vs. Poor</title>
		<link>http://www.sciencenewsreview.com/uneven-ecological-and-economic-impacts-of-rich-vs-poor/</link>
		<comments>http://www.sciencenewsreview.com/uneven-ecological-and-economic-impacts-of-rich-vs-poor/#comments</comments>
		<pubDate>Fri, 25 Jan 2008 16:23:25 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[Economics]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Energy]]></category>
		<category><![CDATA[Farming]]></category>
		<category><![CDATA[Global Warming]]></category>
		<category><![CDATA[Human Behavior]]></category>
		<category><![CDATA[Oceans]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/uneven-ecological-and-economic-impacts-of-rich-vs-poor/</guid>
		<description><![CDATA[ 
Where ecological footprints fall. The environmental impacts of high- (red), middle- (blue) and low- (yellow) income nations fall on other income tiers, as indicated by the footprints. The numbers are in trillions of 2005 international dollars. (Credit: Thara Srinivasan/UC Berkeley)
Rich Nations&#8217; Environmental Footprints Tread Heavily on Poor Countries offers a study led by former [...]]]></description>
			<content:encoded><![CDATA[<div style="float: left; margin-right: 10px; margin-bottom: 05px"> <img src="http://farm3.static.flickr.com/2119/2219057662_60e0010d47_m.jpg" alt="PieChart" /></div>
<p><i>Where ecological footprints fall. The environmental impacts of high- (red), middle- (blue) and low- (yellow) income nations fall on other income tiers, as indicated by the footprints. The numbers are in trillions of 2005 international dollars. (Credit: Thara Srinivasan/UC Berkeley)</i></p>
<p><a href="http://www.sciencedaily.com/releases/2008/01/080121181408.htm">Rich Nations&#8217; Environmental Footprints Tread Heavily on Poor Countries</a> offers a study led by former UC-Berkeley Thara Srinivasan that examined the impacts of intensive agricultural expansion, deforestation, overfishing. loss of mangrove swamps and forests, ozone depletion and climate change between 1961 and 2000.</p>
<p>For the 3-year project Srinivasan teamed up with Richard B. Norgaard, an ecological economist and professor of energy and resources at UC-Berkeley. This allowed the team to evaluate economic impacts as well as ecological footprints.</p>
<p>Not surprisingly, the team noticed that poor nations are much more adversely impacted than rich nations. The calculation of &#8220;ecological footprints&#8221; of low, middle and high income nations demonstrated graphically that the large ecological footprints of rich nations unfairly impact poor nations whose footprints are small.</p>
<p>Economically speaking, the impact on poor nations is greater than the entire debt of those nations, about which Srinivasan said, <i>&#8220;The ecological debt could more than offset the financial debt of low-income nations.&#8221;</i> And middle-income nations had impacts on poor nations equivalent to the rich nations.</p>
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		<title>Genetically Engineered Corn Endangers Aquatic Ecosystems</title>
		<link>http://www.sciencenewsreview.com/genetically-engineered-corn-endangers-aquatic-ecosystems/</link>
		<comments>http://www.sciencenewsreview.com/genetically-engineered-corn-endangers-aquatic-ecosystems/#comments</comments>
		<pubDate>Thu, 15 Nov 2007 19:12:04 +0000</pubDate>
		<dc:creator>Aileen</dc:creator>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[Biotech]]></category>
		<category><![CDATA[Bt Crops]]></category>
		<category><![CDATA[Controversy]]></category>
		<category><![CDATA[Ecosystems]]></category>
		<category><![CDATA[Farming]]></category>
		<category><![CDATA[Genetic Engineering]]></category>
		<category><![CDATA[Genetics]]></category>

		<guid isPermaLink="false">http://www.sciencenewsreview.com/genetically-engineered-corn-endangers-aquatic-ecosystems/</guid>
		<description><![CDATA[ 
The Chicago Tribune reports this week that scientists at Loyola University have established that the pollen, leaves and other plant parts of corn engineered to kill the European corn borer with Bt toxins could endanger the American midwest&#8217;s aquatic ecosystems when washed into nearby streams.
When eaten by aquatic insects called caddisflies, the Bt toxin [...]]]></description>
			<content:encoded><![CDATA[<div style="float: left; margin-right: 10px; margin-bottom: 05px"> <img src="http://farm3.static.flickr.com/2130/2035403114_fd036f1599_m.jpg" alt="corn" /></div>
<p>The <a href="http://search.live.com/results.aspx?FORM=MOCA15&#038;q=Chicago%20Tribune&#038;adlt=strict">Chicago Tribune</a> reports this week that scientists at Loyola University have established that the pollen, leaves and other plant parts of corn engineered to kill the European corn borer with Bt toxins could endanger the American midwest&#8217;s aquatic ecosystems when washed into nearby streams.</p>
<p>When eaten by aquatic insects called caddisflies, the Bt toxin stunts growth and increases mortality. These insects are food for fish and amphibians in the ecosystem. The scientists reportedly &#8216;feel&#8217; that such unanticipated effects of GE technology need to be investigated, but of course the EPA and USDA (and Monsanto) don&#8217;t feel that way at all.</p>
<p>It might be difficult to separate the effects of GE plant wastes from the general toxic overload caused by modern agribusiness mega-farming practices, which also cause death and deformity among aquatic life forms and amphibians in midwestern ecosystems. And while consumers at home and abroad have made it known that they do not wish to consume genetically engineered pesticides disguised as food, the new market for corn as ethanol fodder makes it unlikely that GM corn is going to be phased out any time soon.</p>
<p><b>Related Links:</b></p>
<p><a href="http://www.upi.com/NewsTrack/Science/2006/02/17/older_farmers_less_likely_to_plant_bt_corn/2860/">Older farmers less likely to plant Bt corn</a></p>
<p><a href="http://www.upi.com/NewsTrack/Science/2007/10/09/study_gm_corn_might_affect_ecosystems/2878/">GM corn might affect ecosystems</a></p>
<p><a href="http://www.upi.com/Consumer_Health_Daily/Reports/2007/02/07/eat_to_live_1_million_against_gm_food/9406/">Eat to Live: 1 million against GM food</a></p>
<p><a href="http://www.upi.com/Consumer_Health_Daily/Reports/2006/01/04/eat_to_live_agriculture_inspectors_chided/6874/">Eat to Live: Agriculture inspectors chided</a></p>
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