<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">George and Michael, would you care to clarify your thoughts please, something elucidative? Sacie<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 7, 2014 at 10:56 PM, George Hawirko <span dir="ltr"><<a href="mailto:ergodesk@gmail.com" target="_blank">ergodesk@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div style="font-family:Calibri,sans-serif;font-size:11pt">A total load of BS.<br><br></div></div><div dir="ltr"><hr><span style="font-family:Calibri,sans-serif;font-size:11pt;font-weight:bold">From: </span><span style="font-family:Calibri,sans-serif;font-size:11pt"><a href="mailto:sacie.lambertson@gmail.com" target="_blank">Sacie Lambertson</a></span><br><span style="font-family:Calibri,sans-serif;font-size:11pt;font-weight:bold">Sent: </span><span style="font-family:Calibri,sans-serif;font-size:11pt">2014-10-06 8:35 PM</span><br><span style="font-family:Calibri,sans-serif;font-size:11pt;font-weight:bold">To: </span><span style="font-family:Calibri,sans-serif;font-size:11pt"><a href="mailto:Greenbuilding@lists.bioenergylists.org" target="_blank">Greenbuilding</a></span><br><span style="font-family:Calibri,sans-serif;font-size:11pt;font-weight:bold">Subject: </span><span style="font-family:Calibri,sans-serif;font-size:11pt">[Greenbuilding] wood structures best for the environment</span><br><br></div><div><div class="h5"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">From the <u>very</u> excellent Environment Building News: <br><h1>Wood Structures Could Reduce Global Carbon by Almost a Third</h1>
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<span><span><a title="Display a printer-friendly version of this page." href="http://www2.buildinggreen.com/print/article/wood-structures-could-reduce-global-carbon-almost-third" rel="nofollow" target="_blank"><img title="Printer-friendly version" alt="Printer-friendly version" src="http://www2.buildinggreen.com/sites/all/modules/print/icons/print_icon.gif" height="16" width="16"></a></span></span><p>Using
sustainably harvested timber in place of concrete, steel, and brick
would have a massive positive impact, a new study asserts.</p>
<p><em>By Paula Melton</em></p>
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<div>Reduction in GHG Emissions from Replacing Steel with Wood</div> <a href="http://www2.buildinggreen.com/sites/buildinggreen.com/files/articles/wood%20carbon%20graph.jpg" rel="shadowbox" target="_blank"><img src="http://www2.buildinggreen.com/sites/buildinggreen.com/files/resize/articles/wood%20carbon%20graph-250x199.jpg" border="0" height="199" width="250"></a>
<p>
<span>
<a href="http://dx.doi.org/10.1080/10549811.2013.839386" target="_blank">
Source: Carbon, Fossil Fuel, and Biodiversity
Mitigation With Wood and Forests, Journal of Sustainable Forestry, 33:3,
248-275 </a>
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</p>
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</div>What would happen if we replaced all concrete, steel, and brick
with wood products in new construction? A whole lot of good, suggests a
new study from researchers at the Yale School of Forestry &
Environmental Studies.
<p>The analysis, “<a href="http://www.tandfonline.com/doi/pdf/10.1080/10549811.2013.839386" target="_blank">Carbon, Fossil Fuel, and Biodiversity Mitigation With Wood and Forests</a>,” published in the <em>Journal of Sustainable Forestry</em>,
concludes that total replacement would result in a 14%–31% reduction in
global greenhouse gas emissions, a 12%–19% reduction in global
fossil-fuel consumption, and a likely increase in biodiversity.</p>
<p>The ranges are so wide because impacts vary
according to how trees are harvested and how efficiently the forestry
products are used, the authors explain, pointing to cross-laminated
timber as an efficient use of wood (see <a href="http://www2.buildinggreen.com/article/engineering-wood-revolution" target="_blank">Engineering a Wood Revolution</a>).
Most of the savings in carbon would come from avoided emissions; some
of the fossil-fuel savings would come from direct burning of scrap wood
for energy. The impact of sequestering carbon in the wood itself—whether
in a building or in a forest—is small by comparison.</p>
<p>Projected increases in biodiversity would result
from “active management,” the authors argue, explaining that more-open
forest structures tend to support the greatest number of species. Given
the fragmented state of the world’s forests, it may be “prudent” to
manage them in a way that creates more diversity rather than waiting for
natural processes to take back over, they argue, adding that “in the
process of this active management, some trees can be harvested and
utilized.”</p>
<p>The researchers recommend that incentive programs
and building codes should encourage the use of sustainably harvested
wood in place of concrete and steel, and that forestry programs should
account for the fact that carbon sequestration in forests may be
“counterproductive” if it results in more concrete and steel production.</p><p>Sacie</p><p>Also an excellent piece from same source re Thermal Bridging and the huge heat loss therein.<br></p></div></div>
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