The new technology has attracted some attention from critics who worry that it gives advertisers far


	The new technology has attracted some attention from critics who worry that it gives advertisers far

A53GG4

5-30-2008 4:43 AM

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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://www.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/9490ab64-0b1a-4151-a534-96ff70af6395/94B01EFC-0D70-443D-8C64-DAD9ECDC64EC/" 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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html" href="http://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html" style="font-size: 11px;">www.usnews.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html"><H1>Light Pollution: Burning Earth at Both Ends</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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html">
                           March 14, 2008
                           04:49 PM ET | 
<A href="http://www.usnews.com/Topics/tag/Author/b/ben_harder/index.html"> Ben Harder</A>
                            </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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html"> As you may have read in our magazine story, "<A href="http://www.usnews.com/articles/science/2008/03/14/turning-out-the-lights.html">Turning Out the Lights</A>," the night is not the same as it once was. For a dramatic illustration of artificial light, check out our new "Light Pollution" <A href="http://www.usnews.com/usnews/photography/light_pollution/interface.php">photo gallery</A>.</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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html">s a society, we are addicted to artificial light. We illuminate our homes and offices, our roads and car dealerships, our Christmas trees and cell towers, and even the architectural flourishes on buildings and bridges. Artificial light is essential to modern urban life and, as of this year, half the world's population is urban. Yet scientists and medical experts are beginning to recognize darker aspects of lighting the night, including harm to wildlife and human health—not to mention wasteful energy use.</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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html">Artificial light causes problems</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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html">disrupts animal behavior </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://www.usnews.com/blogs/thinking-harder/2008/3/14/light-pollution-burning-earth-at-both-ends.html">Artificial light also upsets the body's circadian rhythms by altering our brain's production of the hormone melatonin,</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/94B01EFC-0D70-443D-8C64-DAD9ECDC64EC/blog/" title="blog or email this clip"><img src="http://content9.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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