Fig. 1 Legend

Carbon OriginPoint source capture plantACO2 emitted to atmosphere from mining/processing coal
BCO2 emitted to atmosphere from transporting coal
CCO2 emitted to atmosphere from burning coal
DCO2 captured from flue gas
ECO2 emitted to atmosphere
Direct air capture plantFCO2 captured from atmosphere
GCO2 emitted to atmosphere
Transport HCO2 emitted to atmosphere by transport of CO2 to injection or utilization site
DispositionCarbon sequestrationICO2 emitted to atmosphere by injection process
JCO2 stored in geological formation
Other carbon utilizationKCO2 emitted to atmosphere in conversion for commercial use (other than EOR)
LCO2 stored in products (but returns to atmosphere when products are burned or decompose)
Carbon used for Enhanced Oil Recovery (EOR)MCO2 emitted to atmosphere from oil production and multiple cycling injections
NCO2 remaining in underground oil reservoir
OCO2 emitted to atmosphere from crude transport
PCO2 emitted to atmosphere from crude oil refining
QCO2 emitted to atmosphere from oil combustion