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Table 2 Sensitivity analysis on the deployment of DAC

From: Direct air capture of CO2 and climate stabilization: A model based assessment

Scenarios and parameters Cumulative deployment (GtCO2) Average deployment (GtCO2/year) Peak deployment (GtCO2/year)
Alternative abatement technologies availability
DAC alone (standard) 482 16 37
+ CCS with higher capture rate 439 14 37
+ extra carbon capture from coal combustion in power plants and industry sectors 416 13 33
+ extra decarbonisation of mobile emission sources 386 15 36
+ extra abatement of non-CO2 GHG 316 10 33
All Options 89 3 16
Penetration rate of DAC
50 % 476 14 33
60 % 483 14 36
70 % (standard) 482 16 37
80 % 489 16 36
Social Rate of Time Preference (SRTP)
Standard time preference (standard) 482 16 37
No time preference 334 7 11
Feedback of natural carbon balance
Without considering oceanic outgassing (standard) 482 16 37
Considering oceanic outgassing 341 11 32