This paper explores the urban carbon cycle from the natural sciences perspective,
identifying key knowledge gaps and priority areas for future research. The combination of …

A gap in emission inventories of urban volatile organic compound (VOC) sources, which
contribute to regional ozone and aerosol burdens, has increased as transportation …

The Open-source Data Inventory for Anthropogenic CO 2 (ODIAC) is a global high-spatial-
resolution gridded emissions data product that distributes carbon dioxide (CO 2) emissions …

Ozone pollution in the Southeast US involves complex chemistry driven by emissions of
anthropogenic nitrogen oxide radicals (NO x≡ NO+ NO 2) and biogenic isoprene. Model …

Abstract NASA's Orbiting Carbon Observatory-3 (OCO-3) was designed to support the
quantification and monitoring of anthropogenic CO 2 emissions. Its Snapshot Area Map …

Cities dominate greenhouse gas emissions. Many have generated self-reported emission
inventories, but their value to emissions mitigation depends on their accuracy, which …

The Lagrangian particle dispersion model FLEXPART was originally designed for
calculating long-range and mesoscale dispersion of air pollutants from point sources, such …

Urban emissions remain an underexamined part of the methane budget. Here we present
and interpret aircraft observations of six old and leak‐prone major cities along the East …

The National Emission Inventory (NEI) of the US Environmental Protection Agency (EPA)
reports a steady decrease of US NOx emissions over the 2005–2017 period at a rate of 0.1 …

Accurate estimates of fossil fuel carbon dioxide (FFCO2) emissions are a critical component
of local, regional, and global climate agreements. Current global inventories of FFCO2 …