Existing mitigation strategies to reduce greenhouse gas (GHG) emissions are inadequate to reach the target emission reductions set in the Paris Agreement. Hence, the deployment of negative emission technologies (NETs) is imperative. Given that there are multiple available NETs that need to be evaluated based on multiple criteria, there is a need for a systematic method for ranking and prioritizing them. Furthermore, the uncertainty in estimating the techno-economic performance levels of NETs is a major challenge. In this work, an integrated model of fuzzy analytical hierarchy process (AHP) and interval-extended Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is proposed to address the multiple criteria, together with data uncertainties. The potential of NETs is assessed through the application of this hybrid decision model. Sensitivity analysis is also conducted to evaluate the robustness of the ranking generated. The result shows Bioenergy with Carbon Capture and Storage (BECCS) as the most optimal alternative for achieving negative emission goals since it performed robustly in the different criteria considered. Meanwhile, energy requirement emerged as the most preferred or critical criterion in the deployment of NETs based on the decision-maker. This paper renders a new research perspective for evaluating the viability of NETs and extends the domains of the fuzzy AHP and interval-extended TOPSIS hybrid model.
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I also found this article to be good reading, although I think
the ranking algorithm, category division, and weakness of source
references skewed the result. It is an early model and doubtless
more will follow.
When you consider that some policy scientists are starting to
lean into PyCCS as an improved
form of BECCS, rather than merely producing biochar from crop
waste as a soil amendment, and compelling BECCS to consider local
to regional food and water security and local community
livelihoods, the combined system -- BECCS, BC, and SCS -- would
move from ranks 1, 3, and 4, respectively, to a consensus lead,
with Artificial Trees in 2d and Lime Soda in 3d. Limed Oceans (OL)
and Bejeweled Beaches (EW) would advance to 4th and 5th. [note in
this regard Castree on the power of metaphor
https://www.frontiersin.org/articles/10.3389/fclim.2020.614014/full#h1].
The Carnegie Climate Governance Initiative (C2G)
<https://www.c2g2.net/> is running online webinars on NETs
that are quite good, IMHO. The one on BECCS adopted
PyCCS, as a mutant variant, rather than a separate species. This
essentially redefined BECCS to mean biochar production combined
with energy production. Other cascades of that process could
include AF, SCS, and local to regional food and water security and
jobs, as is presently being demonstrated at scale in several
provinces of China. Prof. Daniel Sanchez's 30m talk is here:
https://www.c2g2.net/?p=296816.
- Albert
Cool Lab Belize Project Office Gonzalo Guerrero 5 Holbox, Q.R. 77310 México 52-998-116-5532 alb...@thefarm.org I would rather have questions that cannot be answered than answers that cannot be questioned. - Richard Feynman
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