气候变化领域集成服务门户(CCPortal): Incorporating blue carbon sequestration benefits into sub-national climate policies

CCPortal

DOI	10.1016/j.gloenvcha.2020.102206
	Incorporating blue carbon sequestration benefits into sub-national climate policies
	Wedding L.M.; Moritsch M.; Verutes G.; Arkema K.; Hartge E.; Reiblich J.; Douglass J.; Taylor S.; Strong A.L.
发表日期	2021
ISSN	9593780
卷号	69
英文摘要	The emissions reduction pledges made by individual countries through the 2015 Paris Agreement represent the current global commitment to mitigate greenhouse gas emissions in the face of the enduring climate crisis. Natural lands carbon sequestration and storage are critical for successful pathways to global decarbonization (i.e., as a negative emissions technology). Coastal vegetated habitats maintain carbon sequestration rates exceeding forest sequestration rates on a per unit area basis by nearly two orders of magnitude. These blue carbon habitats and their associated carbon sequestration benefits are vulnerable to losses from land-use change and sea-level rise. Incorporation of blue carbon habitats in climate change policy is one strategy for both maintaining these habitats and conserving significant carbon sequestration capabilities. Previous policy assessments have found the potential for incorporation of coastal carbon sequestration in national-level policies, yet there has – to date – been little inclusion of blue carbon in the national-scale implementation of Paris commitments. Recently, sub-national jurisdictions have gained attention as models for pathways to decarbonization. However, few previous studies have examined sub-national level policy opportunities for operationalizing blue carbon into climate decision-making. California is uniquely poised to integrate benefits from blue carbon into its coastal planning and management and its suite of climate mitigation policies. Here, we evaluated legal authorities and policy contexts addressing sequestration specifically from blue carbon habitats. We synthesized the progressive action in California's approaches to mitigate carbon emissions including statutory, regulatory, and non-regulatory opportunities to incorporate blue carbon ecosystem service information into state- and local-level management decisions. To illustrate how actionable blue carbon information can be produced for use in decision-making, we conducted a spatial analysis of blue carbon sequestration in several locations in California across multiple agencies and management contexts. We found that the average market values of carbon sequestration services in 2100 ranged from $7,730 to $44,000 per hectare and that the social cost of carbon sequestration value was 1.3 to 2.7 times the market value. We also demonstrated that restoration of small areas with high sequestration rates can be comparable to the sequestration of existing marshes. Our results illustrate how accessible information about carbon sequestration in coastal habitats can be directly incorporated into existing policy frameworks at the sub-national scale. The incorporation of blue carbon sequestration benefits into sub-national climate policies can serve as a model for the development of future policy approaches for negative emissions technologies, with consequences for the success of the Paris Agreement and science-based decarbonization by mid-century. © 2020
关键词	Blue carbon Carbon budget Carbon sequestration Climate mitigation Climate policy Ecosystem services Nature-based solutions
英文关键词	carbon sequestration; climate change; ecosystem service; greenhouse gas; spatial analysis; California; France; Ile de France; Paris; United States; Ville de Paris
语种	英语
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205558
作者单位	School of Geography and the Environment, University of Oxford, Oxford, United Kingdom; Stanford Center for Ocean Solutions, Stanford University, Stanford, United States; Natural Capital Project, Stanford University, Stanford, United States; Department of Applied Economy, University of Santiago de Compostela, Santiago de Compostela, Spain; Environmental Studies Program, Hamilton College, Clinton, NY, United States
推荐引用方式 GB/T 7714	Wedding L.M.,Moritsch M.,Verutes G.,et al. Incorporating blue carbon sequestration benefits into sub-national climate policies[J],2021,69.
APA	Wedding L.M..,Moritsch M..,Verutes G..,Arkema K..,Hartge E..,...&Strong A.L..(2021).Incorporating blue carbon sequestration benefits into sub-national climate policies.Global Environmental Change,69.
MLA	Wedding L.M.,et al."Incorporating blue carbon sequestration benefits into sub-national climate policies".Global Environmental Change 69(2021).