Global carbon capture and storage potential way overblown, study finds
A study from Imperial College London reveals that the potential for carbon capture and storage is overestimated, with realistic capacity at 5-6 gigatons, challenging the IPCC's 30 gigaton projection.
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A recent study from Imperial College London has significantly challenged the United Nations' projections regarding the potential of carbon capture and storage (CCS) in combating climate change. The U.N.'s Intergovernmental Panel on Climate Change (IPCC) estimates that up to 30 gigatons of carbon dioxide could be stored underground by 2050. However, the new research suggests that the realistic capacity is only between 5 to 6 gigatons, indicating that the IPCC's figures may be overly optimistic, particularly concerning China's future CCS capabilities. The study's lead author, Yuting Zhang, emphasized that existing models have inadequately assessed CO2 storage limitations, which could mislead policymakers and businesses. Currently, over $83 billion has been invested in CCS globally, with 41 commercial projects primarily run by fossil fuel companies. Most of the current CCS capacity is used for enhanced oil recovery, which results in significant carbon leakage. Future projects aim to store carbon permanently, but this will require substantial public funding due to a lack of incentives for fossil fuel companies. Critics argue that CCS facilities may ultimately contribute more emissions than they capture due to their energy demands and the nature of their operations. Overall, the study highlights the need for a more realistic approach to CCS in climate strategies.
- A study finds global carbon capture potential is overestimated by a factor of five to six.
- The realistic capacity for carbon storage is only 5-6 gigatons, contrary to the IPCC's 30 gigaton estimate.
- Current CCS projects are primarily used for enhanced oil recovery, leading to significant carbon leakage.
- Future CCS initiatives require heavy public funding due to insufficient incentives for fossil fuel companies.
- Critics warn that CCS may emit more carbon than it captures due to high energy demands.
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