es0c00343_si_001.pdf (1.36 MB)
Policy-Relevant Assessment of Urban CO2 Emissions
journal contribution
posted on 2020-08-06, 22:00 authored by Thomas Lauvaux, Kevin R. Gurney, Natasha L. Miles, Kenneth J. Davis, Scott J. Richardson, Aijun Deng, Brian J. Nathan, Tomohiro Oda, Jonathan A. Wang, Lucy Hutyra, Jocelyn TurnbullGlobal
fossil fuel carbon dioxide (FFCO2) emissions
will be dictated to a great degree by the trajectory of emissions
from urban areas. Conventional methods to quantify urban FFCO2 emissions typically rely on self-reported economic/energy
activity data transformed into emissions via standard emission factors.
However, uncertainties in these traditional methods pose a roadblock
to implementation of effective mitigation strategies, independently
monitor long-term trends, and assess policy outcomes. Here, we demonstrate
the applicability of the integration of a dense network of greenhouse
gas sensors with a science-driven building and street-scale FFCO2 emissions estimation through the atmospheric CO2 inversion process. Whole-city FFCO2 emissions agree within
3% annually. Current self-reported inventory emissions for the city
of Indianapolis are 35% lower than our optimal estimate, with significant
differences across activity sectors. Differences remain, however,
regarding the spatial distribution of sectoral FFCO2 emissions,
underconstrained despite the inclusion of coemitted species information.
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street-scale FFCO 2 emissions estim...mitigation strategiescoemitted species informationCO 2 inversion processPolicy-Relevant Assessmentsectoral FFCO 2 emissionsConventional methodspolicy outcomesactivity sectorsgreenhouse gas sensorsCurrent self-reported inventory emi...emission factorsWhole-city FFCO 2 emissionsscience-driven buildingFFCO 2FFCO 2 emissionsUrban CO 2 Emissions Globalfuel carbon dioxide
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