全球智库信息集成服务系统(G2TT): Energy investments under climate policy: A comparison of global models. Special Issue on Implementing Climate Policies in the Major Economies: An Assessment of Durban Platform Architectures

G2TT

来源类型	Article
规范类型	其他
DOI	10.1142/S2010007813400101
	Energy investments under climate policy: A comparison of global models. Special Issue on Implementing Climate Policies in the Major Economies: An Assessment of Durban Platform Architectures — Results from the LIMITS Project.
	McCollum DL; Nagai Y; Riahi K; Marangoni G; Calvin K; Pietzcker R; van Vliet J; van der Zwan B
发表日期	2013
出处	Climate Change Economics 4 (4): p. 1340010
出版年	2013
语种	英语
摘要	The levels of investment needed to mobilize an energy system transformation and mitigate climate change are not known with certainty. This paper aims to inform the ongoing dialogue and in so doing to guide public policy and strategic corporate decision making. Within the framework of the LIMITS integrated assessment model comparison exercise, we analyze a multi-IAM ensemble of long-term energy and greenhouse gas emissions scenarios. Our study provides insight into several critical but uncertain areas related to the future investment environment, for example in terms of where capital expenditures may need to flow regionally, into which sectors they might be concentrated, and what policies could be helpful in spurring these financial resources. We find that stringent climate policies consistent with a 2 degrees C climate change target would require a considerable upscaling of investments into low-carbon energy and energy efficiency, reaching approximately $45 trillion (range: $30-$75 trillion) cumulative between 2010 and 2050, or about $1.1 trillion annually. This represents an increase of some $30 trillion ($10-$55 trillion), or $0.8 trillion per year, beyond what investments might otherwise be in a reference scenario that assumes the continuation of present and planned emissions-reducing policies throughout the world. In other words, a substantial "clean-energy investment gap" of some $800 billion/yr exists -- notably on the same order of magnitude as present-day subsidies for fossil energy and electricity worldwide ($523 billion). Unless the gap is filled rather quickly, the 2 degrees C target could potentially become out of reach.
主题	Energy (ENE) ; Transitions to New Technologies (TNT)
关键词	Integrated assessment Energy scenarios Climate change Policy analysis Carbon financing
URL	http://pure.iiasa.ac.at/id/eprint/10764/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129851
推荐引用方式 GB/T 7714	McCollum DL,Nagai Y,Riahi K,等. Energy investments under climate policy: A comparison of global models. Special Issue on Implementing Climate Policies in the Major Economies: An Assessment of Durban Platform Architectures — Results from the LIMITS Project.. 2013.