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Avoiding emissions versus creating sinks-Effectiveness and attractiveness to climate finance
Mathew Williams1, Dave Reay1, Pete Smith2
1School of Geosciences, University of Edinburgh, Edinburgh, UK.
Global Change Biology
|January 26, 2023
Summary
Investors often favor carbon sinks over emissions avoidance, but this is a flawed strategy. Both carbon removal and emissions avoidance are crucial and cost-effective for climate change mitigation.
Area of Science:
- Climate Change Mitigation Strategies
- Environmental Economics
- Carbon Sequestration and Emissions Reduction
Background:
- Investor focus is increasingly shifting towards carbon sink projects.
- This trend is driven by a perception that sinks offer greater climate impact.
- This perception risks overlooking the importance of emissions avoidance strategies.
Purpose of the Study:
- To critically evaluate the perceived impact of carbon sinks versus emissions avoidance.
- To analyze the economic efficiency of different climate mitigation approaches.
- To advocate for a balanced approach to climate mitigation investment.
Main Methods:
- Comparative analysis of investment trends in carbon sinks and emissions avoidance.
- Economic assessment of the cost-effectiveness of both mitigation strategies.
- Review of scientific literature on the efficacy of different climate solutions.
Main Results:
- The perception of greater impact from sinks is not universally applicable.
- Overemphasis on sinks can lead to the neglect of vital emissions avoidance measures.
- Both emissions avoidance and carbon removal are essential and can be cost-effective.
Conclusions:
- A balanced portfolio of mitigation strategies, including both emissions avoidance and carbon removal, is necessary.
- Investors should adopt a nuanced view, recognizing the complementary roles of different climate solutions.
- Cost-effective climate mitigation requires investment in both sink enhancement and emissions reduction.
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