Biomass Carbon Nonpartisanship in the Connection of Woodland based Energizes and Items.


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Backwoods Sector & Climate Mitigation
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Slide 1

Biomass Carbon Neutrality in the Context of Forest-based Fuels and Products Al Lucier, NCASI ( alucier@ncasi.org ) Reid Miner, NCASI ( rminer@ncasi.org ) May 2010

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Annual U.S. Creation of Renewable Materials and Biomass Energy Feedstock Circa 2005

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Forest Sector & Climate Mitigation " In the long haul, a practical woodland administration procedure went for keeping up or expanding backwoods carbon stocks, while delivering a yearly maintained yield of timber, fiber or vitality from the timberland, will produce the biggest supported alleviation benefit."  IPCC 4 th Assessment Report (2007)

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The "unbiased" biomass carbon cycle Carbon exchanges from land holds VS Atmosphere Non-biogenic CO 2 Atmosphere CO 2 Biogenic CO 2 Biomass Carbon Fossil Fuel Biogenic carbon is a piece of a generally fast normal cycle that effects air CO 2 just if the cycle is out of equalization Fossil fuel burning moves geologic carbon into the environment. It is a restricted procedure

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In Real Landscapes, Carbon Uptake & Release Vary in Time & Space

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Implications for Carbon Accounting Fossil Fuels: CO 2 discharges at purpose of ignition are predominant variables in "carbon impressions." Forest Biomass Fuels: Changes in woods carbon stocks can be prevailing elements in "carbon impressions." This is the reason there are diverse carbon bookkeeping techniques for fossil fills and biomass powers.

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Biomass Carbon Neutrality (BCN) Practical Contexts: National Greenhouse Gas Inventory & Reporting Cap & Trade Programs EPA Regulation of CO 2

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National GHG Inventory & Reporting BCN implies that a CO 2 discharge component of zero is utilized for biomass energizes at purpose of ignition . Outflows connected with the creation of biomass powers are measured where they happen. National GHG Inventory has two fundamental parts: (1) Emissions other than biogenic CO 2 Changes in carbon stocks Biogenic CO 2 emanations are caught in (2). To maintain a strategic distance from twofold including, a CO 2 outflow variable of zero is utilized for biomass energizes at purpose of burning .

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Cap & Trade Programs BCN is utilized as a part of top & exchange projects to: support utilization of biomass powers set up of fossil energizes. keep up consistency with National GHG Reporting. A few partners have communicated worries about unintended outcomes of impetuses in top & exchange projects to utilize biomass and other vitality alternatives.

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EPA Regulation of CO 2 BCN is being talked about in connection of EPA\'s arrangement to direct CO 2 as a contamination under the Clean Air Act. Key subjects include: Legal premise for recognizing fossil and biomass wellsprings of CO 2 . Worries about intemperate utilization of biomass. Worries that controlling CO 2 from biomass would empower changing from biomass powers to fossil powers.

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Why Would Eliminating BCN Encourage Switching from Forest-Based Biomass Fuels to Fossil Fuels? At purpose of ignition, CO 2 discharges for every unit of vitality created are for the most part higher for biomass powers than for fossil powers. This is because of the higher water substance of biomass fills. CO 2 outflows at purpose of ignition could be diminished by moving fuel blend far from biomass. Notwithstanding, general CO 2 outflows would increment as a rule.

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Biomass Carbon Neutrality Does not quantify decreases in GHG outflows owing to utilizing bioenergy rather than fossil vitality.

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Quantifying GHG Benefits of Bioenergy Construct situations. Gauge aggregate discharges for every situation.

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What if another biomass generation framework is bit by bit supplanting woods that has higher carbon stocks? Net aggregate emanations for biomass framework increment to reflect stock misfortunes , yet quit expanding after the sum total of what plots have been changed over to generation timberland. Biomass vitality Fossil fuel vitality Cumulative CO2 ignition outflows Net Cumulative CO2 burning emanations Time

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This expands the time required for biomass to show net advantages, yet after the "equal the initial investment point" the advantages of biomass keep on accrueing. Biomass vitality Fossil fuel vitality Cumulative CO2 burning outflows Net Cumulative CO2 ignition emanations Biomass lower from here forward Time

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If diminishments in area based carbon are lower, an ideal opportunity to "equal the initial investment" is decreased. Biomass vitality Fossil fuel vitality Cumulative CO2 burning emanations Net Cumulative CO2 ignition outflows Biomass lower from here forward Time

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obviously, the inverse can happen. Area can be changed over to higher carbon stocks to give biomass vitality (e.g. afforestation). Biomass vitality Fossil fuel vitality Cumulative CO2 ignition emanations Net Cumulative CO2 burning outflows Cumulative fossil fuel carbon discharges keep on increasing uncertainly Time Cumulative net biomass outflows stay underneath zero

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So, we have seen that the net total outflows of biogenic carbon shift contingent upon whether and how the general carbon stocks on the area are evolving. In the United States, carbon stocks on wood-creating area are steady or expanding, so the national circumstance is best spoken to by this line. Change over area to much lower carbon stocks Net Cumulative biogenic CO2 discharges Convert area to fairly bring down carbon stocks Keep land in same general backwoods sort Time This implies the woodland biomass carbon put in the environment is balanced by new woods development on wood-delivering land Afforestation or other increment in carbon thickness

Slide 19

Timberland Growth/Removal Ratio By Region Growth-expulsion proportion is computed in light of yearly development on timberland partitioned by yearly evacuation as of reported years. No particular information for development and evacuation in the middle of reported years. Source: Forest Resources of the United States, 2007 – Table 36

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"Life Cycle" Emissions of Greenhouse Gasses Other than Biogenic CO2 Data sources: IPCC, USDOE USLCI Database, other open life cycle databases

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Summary US Forest Sector A world pioneer in biomass vitality generation & use. Part of the answer for nursery gas moderation. Biomass Carbon Neutrality (BCN) in principle, a trait of biomass vitality frameworks where the biogenic carbon cycle is in parity. Practically speaking, a bookkeeping tradition in national nursery gas inventories.

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Summary In the United States, timberland carbon stocks are steady or expanding; along these lines, GHG emanations per unit of vitality are much lower for backwoods biomass energizes than for fossil fills. EPA is thinking about whether to kill BCN for reasons for directing CO 2 as a toxin under the Clean Air Act. EPA conceded choice on BCN in "customizing standard" Eliminating BCN in this connection would support substitution of biomass will fossil powers, bringing about considerable increments in GHG discharges.

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