碳排放精准表征

Carbon emissions of cities from a consumption-based perspective

Carbon emission inventories are the foundations of climate change mitigation and adaptation in cities. In this study, we estimated production-based CO 2 emissions from fossil fuel combustion and industrial processes in eleven cities in Hebei Province of China in 2012 and used input-output theory to measure their consumption-based CO 2 emissions. By comprehensively comparing production- and consumption-based emissions, we found that six d...

Temporal change in India’s imbalance of carbon emissions embodied in international trade

In India, rapid industrialization and reorganization of the global supply chain are driving economic growth, accompanied by increasing exports and carbon emissions. India is poised to succeed China as the next world manufactory, which will lead to huge emissions in the country. To formulate appropriate emission mitigation measures, it is necessary to further understand the temporal change in India’s emissions at the sectoral level fro...

Integrating Sustainability Into City-level CO₂ Accounting: Social Consumption Pattern and Income Distri

From a sustainability perspective, city-level CO 2 emissions require reconsiderations. Correspondingly, the economy-environment-society nexus should be incorporated into city-scale CO 2 accounting. Therefore, in this study, the semi-closed IO model is integrated with a HEM to calculate CO 2 emissions arising from the social consumption pattern and income distribution, and to explore economic drivers behind CO 2 variations. This method i...

CEADs研究：印度在国际贸易中净出口碳逐渐增加

国际贸易在促进经济快速发展的同时，也实现了商品的生产者和消费者在地理上的分离，进而对全球碳排放的分布产生了深远的影响。中国经济进入“新常态”后，由于产业结构不断升级和能源结构持续优化，中国的总体碳排放和出口隐含碳都已达峰，下一阶段碳减排目标能否实现与正处于工业化阶段的新兴经济体息息相关。宽松的环...

The role of intermediate trade in the change of carbon flows within China

In recent years, evaluating the emissions embodied in trade (EEIT) has become an important area of policy and research. Multiregional input-output (MRIO) analysis, which links producers and final consumers, is a widely-used method for quantifying the EEIT. However, the role of intermediate trade in driving changes in the EEIT is still not fully incorporated in MRIO analysis and as a result poorly understood. Here, we present a framework ...

Rapid growth of petroleum coke consumption and its related emissions in China

Petroleum coke, a non-environmentally friendly energy source, is gradually replacing other power fuels in China’s industrial enterprises because of its price advantage. Petroleum coke has high emission factors and thus emits more greenhouse gases (GHGs) and air pollutants than even raw coal. This study first examines the rapid growth of petroleum coke consumption in China since 2010 by industry sector and region and then estimates the ...

【CEADs合作】资本积累导致快速发展国家的隐含温室气体排放量被显著高估

当前的温室气体排放核算主要分为基于生产者责任和基于消费者责任两个体系，过去的研究认为一个国家基于这两种体系获得的排放量核算结果差异——即直接排放量和隐含排放量的差异——是因为存在空间维度上的碳泄漏现象。在过去研究的基础上，CEADs团队联合中国人民大学等多个研究机构学者首次提出了时间维度上的碳泄漏机制...

Estimating perfluorocarbon emission factors for industrial rare earth metal electrolysis

Rare earth (RE) metals have been widely applied in new materials, leading to their drastic production increase in the last three decades. In the production process featured by the molten-fluoride electrolysis technology, perfluorocarbon (PFC) emissions are significant and therefore deserve full accounting in greenhouse gas (GHG) emission inventories. Yet, in the ‘ 2006 IPCC Guidelines for National Greenhouse Gas Inventories ’, no met...

A multi-regional input-output table mapping China's economic outputs and interdependencies in 2012

Multi-regional input-output (MRIO) models are one of the most widely used approaches to analyse the economic interdependence between different regions. We utilised the latest socioeconomic datasets to compile a Chinese MRIO table for 2012 based on the modified gravity model. The MRIO table provides inter-regional and inter-sectoral economic flows among 30 economic sectors in China’s 30 regions for 2012. This is the first MRIO table to ...

Reconciling discrepancies in the source characterization of VOCs between emission inventories and recep

Emission inventory (EI) and receptor model (RM) are two of the three source apportionment (SA) methods recommended by Ministry of Environment of China and used widely to provide independent views on emission source identifications. How to interpret the mixed results they provide, however, were less studied. In this study, a cross-validation study was conducted in one of China's fast-developing and highly populated city cluster- the Pearl...