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08:18
Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
Published on: June 12, 2016
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Global temporal evolution of CH4 emissions via geo-economic integration
Xin Wang1, Wenjie Tian2, Chenghe Guan3
1School of Management, China University of Mining & Technology-Beijing, Beijing, 100083, PR China.
Journal of Environmental Management
|December 30, 2021
Summary
Global trade significantly increased methane (CH4) emissions between 1990 and 2015, with developing nations often exporting these emissions. International cooperation is crucial to reduce trade-related CH4 emissions.
Area of Science:
- Environmental Science
- Economics
- Climate Change
Background:
- Globalization has led to complex geo-economic integrations through various trade routes (South-South, North-North, South-North).
- These trade patterns play a critical role in the displacement and transfer of global greenhouse gas emissions, particularly methane (CH4).
- Understanding these emission transfers is vital for effective climate change mitigation strategies.
Purpose of the Study:
- To explore the dynamics of trade-induced methane (CH4) emission transfers among 20 global regions from 1990 to 2015.
- To quantify the contribution of different trade types (South-South, North-North, South-North) to CH4 emission displacement.
- To identify major importing and exporting regions of embodied CH4 emissions.
Main Methods:
- Utilized global CH4 emission inventories from the Emissions Database for Global Atmospheric Research (EDGAR).
- Employed global multi-region input-output accounts from the EORA database for trade analysis.
- Analyzed emission transfers across 20 geographical regions over a 25-year period (1990-2015).
Main Results:
- Global total CH4 emissions rose by 19.13%, while trade-related emissions surged by 46.28% between 1990 and 2015.
- Western Europe, USA, Japan, Other East Asia, and Mainland China were top CH4 emission importers; Sub-Saharan Africa, Russia, Middle East, Mainland China, and Southeast Asia were top exporters.
- South-North trade dominated embodied CH4 emissions (55%-71%), followed by South-South trade (19%-34%), with North-North trade being minimal (10%-11%).
Conclusions:
- Significant transfers of agriculture- and energy-related CH4 emissions occurred from developed to developing regions.
- Trade between the global South and North showed divergence in structure and transfer paths.
- Strengthening international cooperation across all trade types (South-South, South-North, North-North) is essential for global CH4 emission reduction.
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