Estimating US fossil fuel CO₂ emissions from measurements of ¹⁴C in atmospheric CO₂.

ABSTRACT: We report national scale estimates of CO₂ emissions from fossil-fuel combustion and cement production in the United States based directly on atmospheric observations, using a dual-tracer inverse modeling framework and CO₂ and [Formula: see text] measurements obtained primarily from the North American portion of the National Oceanic and Atmospheric Administration's Global Greenhouse Gas Reference Network. The derived US national total for 2010 is 1,653 ± 30 TgC yr^-1 with an uncertainty ([Formula: see text]) that takes into account random errors associated with atmospheric transport, atmospheric measurements, and specified prior CO₂ and ¹⁴C fluxes. The atmosphere-derived estimate is significantly larger ([Formula: see text]) than US nati

SUBMITTER: Basu S 

PROVIDER: S-EPMC7306993 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature