<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/90f44c8d-edea-42d8-be38-8a00839b675a/F7F99D2A-7024-4AA6-9D94-C07A7C96576A/" 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.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas" href="http://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas" style="font-size: 11px;">www.guardian.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas"><P>More than two million people living on the banks of Lake Kivu in central Africa are at risk of being asphyxiated by gases building up beneath its surface, scientists have warned.</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://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.guardian.co.uk/img/66DC54EC-43EC-4C10-9C93-55CFFC00D742" alt="Youngsters dive into the waters of Lake Kivu at Kisegi" /></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://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas"><P>It is estimated that the lake, which straddles the borders of the Democratic Republic of Congo and <A href="http://www.guardian.co.uk/world/rwanda">Rwanda</A>, now contains 300 cubic kilometres of carbon dioxide and 60 cubic kilometres of methane that have bubbled into the Kivu from volcanic vents. The gases are trapped in layers 80 metres below the lake's surface by the intense water pressures there. However, researchers have warned that geological or volcanic events could disturb these waters and release the gases. </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://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas">The impact would be devastating, as was demonstrated on 21 August 1986 at Lake Nyos in Cameroon</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.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas"><P>Carbon dioxide is denser than air, so that the 50mph cloud hugged the ground and smothered everything in its path. Some 1,700 people were suffocated.</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://www.guardian.co.uk/world/2009/jul/26/africa-lake-kivu-co2-gas">Lake Kivu, which is more than 3,000 times the size of Nyos and contains more than 350 times as much gas</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/F7F99D2A-7024-4AA6-9D94-C07A7C96576A/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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