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      <h1  class="page-title">Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Sources</h1>
      
    
            
    
    
    
  
    




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<p>Biogenic CO<sub>2</sub> emissions are defined as CO<sub>2</sub> emissions related to the natural carbon cycle, as well as those resulting from the combustion, harvest, combustion, digestion, fermentation, decomposition, or processing of biologically based materials.</p>

<p>Examples of biogenic CO<sub>2</sub> emissions include:</p>

<ul><li>CO<sub>2</sub> from the combustion of biogas collected from biological decomposition of waste in landfills, wastewater treatment, or manure management processes</li>
	<li>CO<sub>2</sub> from combustion of the biological fraction of municipal solid waste or biosolids</li>
	<li>CO<sub>2</sub> derived from combustion of biological material, including forest-derived and agriculture-derived feedstocks</li>
</ul><p>EPA has taken a number of actions related to biogenic CO<sub>2</sub> emissions from stationary sources:</p>

<h2>April 2016: Stakeholder Workshop - Fostering Constructive Dialogue on the Role of Biomass in Stationary Source Carbon Strategies</h2>

<p>States and stakeholders have shown strong interest in the role biomass can play in state strategies to address carbon pollution. Many states have extensive expertise in the area of sound carbon- and GHG-beneficial forestry and land management practices, and exhibit approaches to biomass and bioenergy that are unique to each state’s economic, environmental and renewable energy goals.</p>

<p>To support efforts to further evaluate the role of biomass in stationary source carbon strategies, EPA hosted a public workshop on April 7, 2016, for states and stakeholders to share their successes, experiences and approaches to deploying biomass in ways that have been, and can be, carbon beneficial.</p>

<p></p>

<p><strong>Agenda</strong><br />
	See the <a href="/climatechange/stakeholder-workshop-fostering-constructive-dialogue-role-biomass-stationary-source">agenda</a>.</p>

<h2>November 2014:</h2>

<h3>Memo on Biogenic CO<sub>2</sub> Emissions</h3>

<p>Acting Assistant Administrator Janet McCabe issued a memorandum to the EPA's Regional Air Division Directors describing the EPA's considerations pertaining to biogenic CO<sub>2</sub> emissions in the context of the Clean Power Plan and the Prevention of Significant Deterioration Program.</p>

<ul><li><a href="/climatechange/november-2014-revised-framework-assessing-biogenic-co2-emissions-stationary-sources">Janet McCabe Memo: <em>Addressing Biogenic Carbon Dioxide (CO<sub>2</sub>) Emissions from Stationary Sources</em></a></li>
</ul><h2>Revised Framework for Assessing Biogenic CO<sub>2</sub> Emissions from Stationary Sources</h2>

<p>To continue advancing the Agency's technical understanding of the role the use of biomass can play in addressing overall greenhouse emissions, the EPA developed a second draft of the technical report, the <em>Framework for Assessing Biogenic Carbon Dioxide for Stationary Sources</em>, for further review. The revised report incorporated the latest information from the scientific community and other stakeholders. As a next step forward, EPA initiated a second round of targeted peer review with the Science Advisory Board, in order to continue to refine its technical assessment.</p>

<ul><li><a href="/climatechange/november-2014-revised-framework-assessing-biogenic-co2-emissions-stationary-sources">Revised <em>Framework for Assessing Biogenic Carbon Dioxide (CO<sub>2</sub>) Emissions from Stationary Sources</em></a>

		<ul><li><span id="file-311061" class="file file-document file-application-zip"><a href="/sites/production/files/2016-08/framework-for-assessing-biogenic-co2-emissions-technical-appendices.zip" type="application/zip; length=6216992" class="file-link">Technical Appendices (ZIP)</a><span class="fileinfo">(14 pp, 6 MB, 
  November 2014)</span></span>
</li>
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	<li><a href="/climatechange/november-2014-revised-framework-assessing-biogenic-co2-emissions-stationary-sources">Request for SAB Review of revised <em>Framework</em></a></li>
	<li><a href="/climatechange/november-2014-revised-framework-assessing-biogenic-co2-emissions-stationary-sources">Charge to SAB</a></li>
	<li><a href="https://yosemite.epa.gov/sab/SABPRODUCT.nsf/MeetingCalBOARD/AE8B4AA7598F554485257DE3006BC2BC?OpenDocument">SAB Biogenic Carbon Emissions Panel Meeting</a></li>
</ul><h2>September 2012: EPA Science Advisory Board Review of the 2011 Draft Accounting Framework for CO<sub>2</sub> Emissions for Biogenic Sources Study</h2>

<p>EPA's Science Advisory Board reviewed the 2011 Draft Accounting Framework for Biogenic CO<sub>2</sub> Emissions from Stationary Sources, and provided recommendations on the scientific and technical issues associated with EPA's draft assessment.</p>

<ul><li><a href="https://yosemite.epa.gov/sab/sabproduct.nsf/0/2F9B572C712AC52E8525783100704886?OpenDocument">EPA SAB Review of 2011 Accounting Framework for CO<sub>2</sub> Emissions from Biogenic Sources: background, review panel, advisory meetings &amp; final report</a></li>
</ul><h2>September 2011: Draft Accounting Framework for Biogenic CO<sub>2</sub> Emissions from Stationary Sources</h2>

<p>In 2011, EPA published a draft Accounting Framework for Biogenic CO<sub>2</sub> Emissions from Stationary Sources. This draft was presented to SAB to review and comment on 1) EPA's characterization of the science and technical issues relevant to biogenic CO<sub>2</sub> accounting, 2) EPA's framework, approach, and methodological choices; and 3), options for improving the framework.</p>

<ul><li><a href="/climatechange/september-2011-draft-accounting-framework-biogenic-co2-emissions-stationary-sources">Accounting Framework for Biogenic CO<sub>2</sub> Emissions from Stationary Sources</a></li>
	<li><a href="/climatechange/september-2011-draft-accounting-framework-biogenic-co2-emissions-stationary-sources">Memo and charge to SAB</a></li>
	<li><a href="/climatechange/september-2011-draft-accounting-framework-biogenic-co2-emissions-stationary-sources">Fact Sheet</a></li>
</ul><h2>July 2010: Call for Information on GHG Emissions Associated with Bioenegy and Other Biogenic Sources</h2>

<p>In July 2010, EPA issued a Call for Information to request data about biogenic sources of carbon dioxide, general technical comments on accounting for biogenic CO<sub>2</sub>, and comments on developing an approach for such emissions under the Prevention of Significant Deterioration and Title V Programs under the Clean Air Act.</p>

<ul><li><a href="/climatechange/july-2010-call-information-ghg-emissions-associated-bioenegy-and-other-biogenic">Call for Information: July 15, 2010 Federal Register Notice</a></li>
	<li><a href="/climatechange/july-2010-call-information-ghg-emissions-associated-bioenegy-and-other-biogenic">Call for Information Correction: August 2, 2010 Federal Register Notice</a></li>
	<li><a href="/climatechange/july-2010-call-information-ghg-emissions-associated-bioenegy-and-other-biogenic">Fact Sheet</a></li>
	<li><a href="/climatechange/july-2010-call-information-ghg-emissions-associated-bioenegy-and-other-biogenic">Synthesis of comments on the call for information on bioenergy and other biogenic sources</a></li>
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