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Critical method needs in measuring greenhouse gas fluxes
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- Bastviken, David (author)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Wilk, Julie (author)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Nguyen, Thanh Duc (author)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- (creator_code:org_t)
- 2022-09-20
- 2022
- English.
- In: Environmental Research Letters. - : IOP Publishing Ltd. - 1748-9326. ; 17:10
- Journal article (peer-reviewed)
Abstract
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- Reaching climate goals depends on appropriate and accurate methods to quantify greenhouse gas (GHG) fluxes and to verify that efforts to mitigate GHG emissions are effective. We here highlight critical advantages, limitations, and needs regarding GHG flux measurement methods, identified from an analysis of >13 500 scientific publications regarding three long-lived GHGs, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). While existing methods are well-suited for assessing atmospheric changes and local fluxes, they are expensive and have limited accessibility. Further, we are typically forced to choose between methods for very local GHG sources and sinks and their regulation (m(2)-scaled measurements), or methods for aggregated net fluxes at >ha or km(2) scales measurements. The results highlight the key need of accessible and affordable GHG flux measurement methods for the many flux types not quantifiable from fossil fuel use, to better verify inventories and mitigation efforts for transparency and accountability under the Paris agreement. The situation also calls for novel methods, capable of quantifying large scale GHG flux patterns while simultaneously distinguishing local source and sink dynamics and reveal flux regulation, representing key knowledge for quantitative GHG flux modeling. Possible strategies to address the identified GHG flux measurement method needs are discussed. The analysis also generated indications of how GHG flux measurements have been distributed geographically and across flux types, which are reported.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Keyword
- greenhouse gas; flux; methods; climate change; mitigation; verification; Paris agreement
Publication and Content Type
- ref (subject category)
- art (subject category)
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