<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/c2ea678e-7128-4b1a-aed0-cf900222ac54/208794F8-7907-4ADC-A10C-036114B1D036/" 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.koshland-science-museum.org/exhibitgcc/causes01.jsp" href="http://www.koshland-science-museum.org/exhibitgcc/causes01.jsp" style="font-size: 11px;">www.koshland-science-museum.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.koshland-science-museum.org/exhibitgcc/causes01.jsp"><P>Climate change may result from both natural and human causes. The importance of human causes has been increasing during the past few decades.</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.koshland-science-museum.org/exhibitgcc/causes01.jsp"><P><SPAN>Causes</SPAN> The major causes of climate change are described in the following sections.</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.koshland-science-museum.org/exhibitgcc/causes01.jsp"><P><A href="http://www.koshland-science-museum.org/exhibitgcc/causes02.jsp">CO<SUB>2</SUB> and Other Greenhouse Gas Variations</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes03.jsp">Human Activity and Greenhouse Gas</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes04.jsp">Reducing Other Greenhouse Gases</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes05.jsp">Ocean Circulation </A><A href="http://www.koshland-science-museum.org/exhibitgcc/causes06.jsp">Volcanic Eruptions</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes07.jsp">Solar Variations</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes08.jsp">Orbital Variations</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes09.jsp">Land Use Changes</A> </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.koshland-science-museum.org/exhibitgcc/causes01.jsp"><P><SPAN>Amplifiers</SPAN> Factors that can amplify or reduce the effect of the causes of change are known as "feedbacks." Some of the key feedbacks are described in the following sections. These feedbacks consist of interconnected processes in which a change in one leads to a change in another, which ultimately leads to further changes in the first. </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.koshland-science-museum.org/exhibitgcc/causes01.jsp"><P><SPAN><A href="http://www.koshland-science-museum.org/exhibitgcc/causes10.jsp">Aerosols</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes11.jsp">Clouds</A> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes12.jsp">Water Vapor</A><BR /><DIV> <A href="http://www.koshland-science-museum.org/exhibitgcc/causes13.jsp">Ice-Reflectivity</A></DIV> </SPAN>The effects of these causes and feedbacks can be seen in the climate changes that are in <A href="http://www.koshland-science-museum.org/exhibitgcc/historical01.jsp">Historic Climate Changes</A> and elsewhere throughout this web exhibition. </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/208794F8-7907-4ADC-A10C-036114B1D036/blog/" title="blog or email this clip"><img src="http://content8.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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