Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15296 |
Can biomass supply meet the demands of bioenergy with carbon capture and storage (BECCS)? | |
Michael B. Jones; Fabrizio Albanito | |
2020-08-20 | |
发表期刊 | Global Change Biology
![]() |
出版年 | 2020 |
英文摘要 | To reach the reduced carbon emission targets proposed by the Paris agreement, one of the widely proposed decarbonizing strategies, referred to as negative emissions technologies (NETs), is the production and combustion of bioenergy crops in conjunction with carbon capture and storage (BECCS). However, concerns have been increasingly raised that relying on the potential of BECCS to achieve negative emissions could result in delayed reductions in gross CO2 emissions, with consequent high risk of overshooting global temperature targets. We focus on two particular issues: the carbon efficiency and payback time of bioenergy use in BECCS and the potential constraints on the supply of bioenergy. The simplistic vision of BECCS is that 1 tonne of CO2 captured in the growth of biomass equates to 1 tonne of CO2 sequestered geologically, but this cannot be the case as CO2 is emitted by variable amounts during the lifecycle from crop establishment to sequestration below ground in geological formations. The deployment of BECCS is ultimately reliant on the availability of sufficient, sustainably sourced, biomass. The two most important factors determining this supply are land availability and land productivity. The upper bounds of the area estimates required correspond to more than the world's harvested land for cereal production. To achieve these estimates of biomass availability requires the rapid evolution of a multitude of technological, social, political and economic factors. Here, we question whether, because of the limited sustainable supply of biomass, BECCS should continue to be considered the dominant NET in IPCC and other scenarios achieving the Paris targets, or should it be deemed no longer fit for purpose? |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/291085 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Michael B. Jones,Fabrizio Albanito. Can biomass supply meet the demands of bioenergy with carbon capture and storage (BECCS)?[J]. Global Change Biology,2020. |
APA | Michael B. Jones,&Fabrizio Albanito.(2020).Can biomass supply meet the demands of bioenergy with carbon capture and storage (BECCS)?.Global Change Biology. |
MLA | Michael B. Jones,et al."Can biomass supply meet the demands of bioenergy with carbon capture and storage (BECCS)?".Global Change Biology (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论