The contributions of countries without carbon neutrality targets to global climate mitigation through bioenergy with carbon capture and storage (BECCS).
This research analyzes the role non-carbon neutral (non-CN) countries can play in global climate mitigation by adopting bioenergy with carbon capture and storage (BECCS), particularly through switchgrass cultivation. The two scenarios analyzed are low-warming and overshoot scenarios, examining their contributions to carbon dioxide removal (CDR) and temperature change.
Research conducted by various authors, affiliated with institutions focusing on climate science.
This analysis was published on November 2021; the simulations projected contributions up to the year 2100.
The research includes data on countries globally, particularly focused on those without CN targets.
To understand the extent of contributions from non-CN countries to climate mitigation efforts, especially concerning BECCS, and to inform climate negotiations.
Utilized an Earth system model to simulate the effects of switchgrass cultivation under different climate scenarios, calculating the biogeochemical and biophysical effects of implementing BECCS.
Non-CN countries represent roughly 11% of global anthropogenic CO2 emissions.
“The absence of BECCS implementation in the non-CN countries could lead to an increase in global temperatures by 0.01 ± 0.04 to 0.02 ± 0.06 °C and a loss of 9.1 ± 2.8 to 19.9 ± 5.2 PgC...”
“The non-CN countries play a more important role in the low-warming scenario than in the overshoot scenario...”
Introduction: Introduce the significance of non-CN countries' contributions to global climate mitigation and the importance of BECCS. Include initial statistics about global CO2 emissions from non-CN countries.
Background: Provide background on climate targets, the significance of BECCS, and previous estimates related to carbon neutrality efforts.
Methodology and Discovery: Explain the Earth system model used for simulations and how switchgrass is modeled to assess its impact on CO2 removal and temperature effects. Discuss both low-warming and overshoot scenarios.
Findings and Implications: Present findings on the potential CDR and temperature changes due to switchgrass cultivation. Highlight the disparities between non-CN and CN countries and the percentage contributions to global climate efforts.
Conclusion: Summarize the study's findings and their relevance for future climate strategies, emphasizing the need for international cooperation and actionable climate policies targeting non-CN countries.