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Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
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Related Experiment Video

Updated: Jul 15, 2026

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions

Published on: June 12, 2016

Monthly methane emissions in China from 2018-2024 based on source-level data.

Pengcheng Wu1, Ke Wang2, Jing Guo3

  • 1School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China.

Scientific Data
|July 13, 2026
PubMed
Summary

China

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Last Updated: Jul 15, 2026

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Area of Science:

  • Environmental Science
  • Climate Science
  • Atmospheric Chemistry

Background:

  • China is the world's largest emitter of methane (CH4).
  • Effective methane mitigation requires accurate, up-to-date emission data.
  • Current data lacks source-level, dynamic CH4 emission estimates for China.

Purpose of the Study:

  • To develop a comprehensive, source-level, monthly methane emission inventory for China.
  • To provide robust data supporting China's climate commitments.
  • To address the absence of dynamic CH4 emission estimations.

Main Methods:

  • Development of the Chinese Methane Emissions Database (CMED).
  • Creation of a nationwide, source-level, monthly emission inventory.
  • Inclusion of data from 2018-2024.

Main Results:

  • The CMED offers a detailed account of anthropogenic CH4 emissions in China.
  • Uncertainty analysis confirmed the robustness of the dataset (±3.57%).
  • The database provides integrated, source-level, and temporally explicit information.

Conclusions:

  • The CMED is a critical tool for accurate methane emission analysis in China.
  • This dataset will support policy evaluation for China's climate commitments.
  • The inventory provides essential data for formulating measurable methane reduction targets.