scholarly journals Evaluating Carbon Capture and Storage in a Climate Model with Endogenous Technical Change

2019 ◽  
Author(s):  
Tunç Durmaz ◽  
Fred Schroyen
Keyword(s):  
Technical Change ◽  
Carbon Capture ◽  
Climate Model ◽  
Carbon Capture And Storage ◽  
Endogenous Technical Change ◽  
And Storage

scholarly journals EVALUATING CARBON CAPTURE AND STORAGE IN A CLIMATE MODEL WITH ENDOGENOUS TECHNICAL CHANGE

2019 ◽  
Vol 11 (01) ◽  
pp. 2050003
Author(s):  
TUNÇ DURMAZ ◽  
FRED SCHROYEN
Keyword(s):  
Renewable Energy ◽  
Technical Change ◽  
Carbon Capture ◽  
Climate Model ◽  
Carbon Capture And Storage ◽  
American Economic Review ◽  
Fossil Energy ◽  
Directed Technical Change ◽  
Energy Regime ◽  
And Storage

We assess the extent to which Carbon Capture and Storage (CCS) and R&D on this abatement technology are part of a socially efficient solution to the problem of climate change. For this purpose, we extend the intertemporal model of climate and directed technical change developed by Acemoglu et al. (2012) [The environment and directed technical change. American Economic Review, 102(1), 131–166] to include a sector responsible for CCS. We show that two types of solutions exist: a renewable energy regime where current CCS technology is only temporarily used but never further developed; and a fossil energy regime where CCS is part of a long-term solution and is further developed at about the same rate as fossil energy technology. Our computations show that for current estimates of the marginal cost of CCS, the renewable energy regime clearly dominates the fossil fuel energy regime.

scholarly journals Interactions between reducing CO 2 emissions, CO 2 removal and solar radiation management

2012 ◽  
Vol 370 (1974) ◽  
pp. 4343-4364 ◽  
Author(s):  
Naomi E. Vaughan ◽  
Timothy M. Lenton
Keyword(s):  
Carbon Dioxide ◽  
Solar Radiation ◽  
Carbon Dioxide Emissions ◽  
Radiative Forcing ◽  
Carbon Capture ◽  
Climate Model ◽  
Carbon Capture And Storage ◽  
Solar Radiation Management ◽  
Radiation Management ◽  
And Storage

We use a simple carbon cycle–climate model to investigate the interactions between a selection of idealized scenarios of mitigated carbon dioxide emissions, carbon dioxide removal (CDR) and solar radiation management (SRM). Two CO 2 emissions trajectories differ by a 15-year delay in the start of mitigation activity. SRM is modelled as a reduction in incoming solar radiation that fully compensates the radiative forcing due to changes in atmospheric CO 2 concentration. Two CDR scenarios remove 300 PgC by afforestation (added to vegetation and soil) or 1000 PgC by bioenergy with carbon capture and storage (removed from system). Our results show that delaying the start of mitigation activity could be very costly in terms of the CDR activity needed later to limit atmospheric CO 2 concentration (and corresponding global warming) to a given level. Avoiding a 15-year delay in the start of mitigation activity is more effective at reducing atmospheric CO 2 concentrations than all but the maximum type of CDR interventions. The effects of applying SRM and CDR together are additive, and this shows most clearly for atmospheric CO 2 concentration. SRM causes a significant reduction in atmospheric CO 2 concentration due to increased carbon storage by the terrestrial biosphere, especially soils. However, SRM has to be maintained for many centuries to avoid rapid increases in temperature and corresponding increases in atmospheric CO 2 concentration due to loss of carbon from the land.

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