Nitrogen pollution drives trees to soak up more CO2


	Nitrogen pollution drives trees to soak up more CO2

aizwaikcha

6-16-2007 4:08 AM

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tags:

environment, trees, nitrogen, co2

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/74da9924-0f04-40b7-9d01-ccb76995faa1/0A116291-2B4B-4D36-969E-F2C3CF0BE178/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://environment.newscientist.com/channel/earth/climate-change/dn12058" href="http://environment.newscientist.com/channel/earth/climate-change/dn12058" style="font-size: 11px;">environment.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/channel/earth/climate-change/dn12058"><H1 class="inline">Nitrogen pollution drives trees to soak up more CO<SUB>2</SUB></H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/channel/earth/climate-change/dn12058"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/environment.newscientist.com/img/7B4430F8-AD2A-4729-9D32-EF6B329D7761" alt="On average, temperate forests have been found to absorb an extra 400 kg of carbon dioxide for every 1 kg of nitrogen (Image: Garrett Meigs)" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/channel/earth/climate-change/dn12058"><P>Nitrogen pumped into the environment by human activities such as driving cars and farming is fertilising tree growth and boosting the amount of carbon being stored in forests outside the tropics, say researchers.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/channel/earth/climate-change/dn12058"><P>Their study provides a surprising example of how one type of human pollution is helping to counter another. But the researchers caution that they do not yet know what proportion of carbon dioxide emissions are being offset by the anthropogenic release of nitrogen.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/0A116291-2B4B-4D36-969E-F2C3CF0BE178/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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