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Table 4 Comparison of wood burial and power plant CCS. The markets use tCO2 as carbon unit which can be converted into tC with the conversion factor the molecular weight ratio CO2:C = 44:12; both units are shown.

From: Carbon sequestration via wood burial

Wood Burial

Power plant CO2 capture with geological storage

Price on Chicago Climate Exchange (CCX) 2006

European carbon trading market price during 2005–2007

$14/tCO2 ($7–27)

$20–270/tCO2 [14]

$3–4/tCO2

€1–33/tCO2

$50/tC ($25–100)

$73–990/tC

$12–16/tC

€4–120/tC

Storage safe; semi-permanent, reversible; some environmental concern

Possibility of leakage; lower cost storage capacity small

  

Potential: 10 ± 5 GtC y-1

Long-term: thousands of GtC or no practical limit

Potential rate is limited by scale of operation

Longterm: > 500 GtC