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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Water-use_efficiency</id>
		<title>Water-use efficiency - Revision history</title>
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		<updated>2026-04-21T14:39:22Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Water-use_efficiency&amp;diff=237875&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;[https://www.ipcc.ch/report/ar5/wg2/ AR5 Climate Change 2014: Impacts, Adaptation, and Vulnerability, Glossary], published by the Intergovernmental Panel on Climate Change (IPCC)...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Water-use_efficiency&amp;diff=237875&amp;oldid=prev"/>
				<updated>2022-08-31T08:17:50Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;[https://www.ipcc.ch/report/ar5/wg2/ AR5 Climate Change 2014: Impacts, Adaptation, and Vulnerability, Glossary], published by the Intergovernmental Panel on Climate Change (IPCC)...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[https://www.ipcc.ch/report/ar5/wg2/ AR5 Climate Change 2014: Impacts, Adaptation, and Vulnerability, Glossary], published by the Intergovernmental Panel on Climate Change (IPCC) defines water-use efficiency as: ‘Carbon gain by photosynthesis per unit of water lost by evapotranspiration. It can be expressed on a short-term basis as the ratio of photosynthetic carbon gain per unit transpirational water loss, or on a seasonal basis as the ratio of net primary production or agricultural yield to the amount of water used.’&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings =&lt;br /&gt;
&lt;br /&gt;
* Climate change&lt;br /&gt;
* Delivering water efficiency in commercial buildings: A guide for facilities managers.&lt;br /&gt;
* Kyoto Protocol.&lt;br /&gt;
* Passive water efficiency measures&lt;br /&gt;
* Sustainable development goals.&lt;br /&gt;
* Types of water.&lt;br /&gt;
* Water efficiency – The next big sustainability issue?&lt;br /&gt;
* Water.&lt;br /&gt;
&lt;br /&gt;
[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Water]]&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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