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Global Anthropogenic Methane and Nitrous Oxide Emissions

Methane and Nitrous Oxide emissions contribute significantly to greenhouse gas emissions globally, with an estimated total of 1,618 and 950 million metric tons of carbon equivalent in 2000, respectively. The estimates of these gases are highly dependent on country specific activity data and emission factors. Most countries are presently or are in the process of developing greenhouse gas inventories and projections. Developed countries are using more in-depth, detailed methodologies, activity data, and emissions factors and are passing on this knowledge to other countries through bilateral and multilateral processes. In order to take advantage of this newly available information, we have incorporated the detailed country prepared inventories and projections into an overall global estimation framework. The source and country level estimation methodology presented in this study allows for more accurate anthropogenic emission level estimates at a global level. The results show a slow growth in the recent historical period with quicker growth to 2020, under a without measures scenario.

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Energy Specializations: Energy Modeling – Other; Energy and the Environment – Air Emissions (other than greenhouse gases); Energy and the Environment – Policy and Regulation

JEL Codes:
C59 - Econometric Modeling: Other
Q52 - Pollution Control Adoption and Costs; Distributional Effects; Employment Effects
E60 - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook: General

Keywords: Methane (CH4), Nitrous oxide (NOx), Greenhouse gases, Climate policy

DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-2

Published in Multi-Greenhouse Gas Mitigation and Climate Policy, Special Issue #3 of The Quarterly Journal of the IAEE's Energy Economics Education Foundation.