<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Richard, <div><br></div><div>There is at present no good model of the climate impact of transportation systems, because nobody yet has satisfactorily combined models of economic, environmental and technological systems. The LCA concept, even in its best applications, is a usually poor approximation of the integrated systems modeling needed. (The LCA concept as embodied in the ISO standards is an even poorer approximation, because the ISO standards lag the state of thinking.) If you want more information, you can look at the lifecycle analysis part of my web page. </div><div><br></div><div>Best, </div><div><br></div><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>Mark Delucchi</div><div>Research Scientist</div><div>Institute of Transportation Studies</div><div>University of California</div><div>Davis, CA 95616</div><div><br></div><div>(916) 989-5566</div><div>(310) 792-4335</div><div><br class="khtml-block-placeholder"></div><div><a href="mailto:madelucchi@ucdavis.edu">madelucchi@ucdavis.edu</a></div><div>www.its.ucdavis.edu/people/faculty/delucchi</div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span><br class="Apple-interchange-newline"> </div><br><div><div>On Sep 16, 2008, at 1:56 AM, Richard van Dijk wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Dear all,</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Currently, there are two different approaches to assess the climate impact of processes and organisations: either with Life Cycle Assessment (LCA) methods, or based on the GHG protocol. The two approaches use different concepts and therefore may yield different GHG emission results.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">What is the difference in methodology, boundary setting and required level of detail for both? What would be a good source of information on LCA with regard to transportation and logistics?</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Thanks,</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Richard</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Greenhouse Gas Inventory Experts Network</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">www.ghgnetwork.org</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">To post message:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Discuss mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:Discuss@ghgnetwork.org">Discuss@ghgnetwork.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">To unsubscribe:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://milkyway.forumone.com/mailman/listinfo/discuss">http://milkyway.forumone.com/mailman/listinfo/discuss</a></div> </blockquote></div><br></body></html>