GSTDTAP  > 气候变化
DOI10.1088/1748-9326/aaae72
Comment on Geoengineering with seagrasses: is credit due where credit is given?
Oreska, Matthew P. J.1; McGlathery, Karen J.1; Emmer, Igino M.2; Needelman, Brian A.3; Emmett-Mattox, Stephen4; Crooks, Stephen5; Megonigal, J. Patrick6; Myers, Doug7
2018-03-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2018
卷号13期号:3
文章类型Editorial Material
语种英语
国家USA; Netherlands
英文摘要

In their recent review, 'Geoengineering with seagrasses: is credit due where credit is given?,' Johannessen and Macdonald (2016) invoke the prospect of carbon offset-credit over-allocation by the Verified Carbon Standard as a pretense for their concerns about published seagrass carbon burial rate and global stock estimates. Johannessen and Macdonald (2016) suggest that projects seeking offset-credits under the Verified Carbon Standard methodology VM0033: Methodology for Tidal Wetland and Seagrass Restoration will overestimate long-term (100 yr) sediment organic carbon (SOC) storage because issues affecting carbon burial rates bias storage estimates. These issues warrant serious consideration by the seagrass research community; however, VM0033 does not refer to seagrass SOC 'burial rates' or 'storage.' Projects seeking credits under VM0033 must document greenhouse gas emission reductions over time, relative to a baseline scenario, in order to receive credits. Projects must also monitor changes in carbon pools, including SOC, to confirm that observed benefits are maintained over time. However, VM0033 allows projects to conservatively underestimate project benefits by citing default values for specific accounting parameters, including CO2 emissions reductions. We therefore acknowledge that carbon crediting methodologies such as VM0033 are sensitive to the quality of the seagrass literature, particularly when permitted default factors are based in part on seagrass burial rates. Literature-derived values should be evaluated based on the concerns raised by Johannessen and Macdonald (2016), but these issues should not lead to credit over-allocation in practice, provided VM0033 is rigorously followed. These issues may, however, affect the feasibility of particular seagrass offset projects.


英文关键词Blue carbon offset-credits seagrass restoration greenhouse gas accounting carbon burial
领域气候变化
收录类别SCI-E
WOS记录号WOS:000434846700001
WOS关键词CARBON ; SEDIMENT
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/14919
专题气候变化
作者单位1.Univ Virginia, Dept Environm Sci, Clark Hall, Charlottesville, VA 22903 USA;
2.Silvestrum Climate Associates, Jisp, Netherlands;
3.Univ Maryland, Dept Environm Sci & Technol, College Pk, MD 20742 USA;
4.Restore Amer Estuaries, Arlington, VA USA;
5.Silvestrum Climate Associates, Mill Valley, CA USA;
6.Smithsonian Environm Res Ctr, POB 28, Edgewater, MD 21037 USA;
7.Chesapeake Bay Fdn, Annapolis, MD USA
推荐引用方式
GB/T 7714
Oreska, Matthew P. J.,McGlathery, Karen J.,Emmer, Igino M.,et al. Comment on Geoengineering with seagrasses: is credit due where credit is given?[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(3).
APA Oreska, Matthew P. J..,McGlathery, Karen J..,Emmer, Igino M..,Needelman, Brian A..,Emmett-Mattox, Stephen.,...&Myers, Doug.(2018).Comment on Geoengineering with seagrasses: is credit due where credit is given?.ENVIRONMENTAL RESEARCH LETTERS,13(3).
MLA Oreska, Matthew P. J.,et al."Comment on Geoengineering with seagrasses: is credit due where credit is given?".ENVIRONMENTAL RESEARCH LETTERS 13.3(2018).
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