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Multi-gas Mitigation Analysis on Stabilization Scenarios Using Aim Global Model

Junichi Fujino, Rajesh Nair, Mikiko Kainuma, Toshihiko Masui  and Yuzuru Matsuoka  

Year: 2006
Volume: Multi-Greenhouse Gas Mitigation and Climate Policy
Number: Special Issue #3
DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-17
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Abstract:
Non-CO2 gas (CH4, N2O and F gas) emissions account for 25 percent of all greenhouse gas in the year of 2000. Main sources of CH4 and N2O emissions are agriculture-related activities such as enteric fermentation, paddy rice cultivation, soil management. A recursive dynamic CGE (Computer General Equilibrium) model has been developed to analyze greenhouse gas reduction options including non-CO2 gas abatement technologies. Multi-regional, multisectoral and multi-gas CGE model and simple climate change model simulated long-term climate stabilization emission path. Preliminary results showed that multi gas mitigation options including CH4 and N2O abatement technologies will reduce GDP loss more than CO2 only mitigation options for long-term climate stabilization, even though CO2 mitigation options will reduce not only CO2 emissions but non-CO2 gas emissions simultaneously. It is necessary to collect regional non-CO2 gas data (emission, technology options, and so on) and conduct more sensitivity analysis with computer simulation model to reduce uncertainty of non-CO2 gas.



India’s Non-CO2 GHG Emissions: Development Pathways and Mitigation Flexibility

P. R. Shukla, Amit Garg, Manmohan Kapshe, Rajesh Nair 

Year: 2006
Volume: Multi-Greenhouse Gas Mitigation and Climate Policy
Number: Special Issue #3
DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-24
View Abstract

Abstract:
This paper analyses the future trends (2000-2030) in Methane and Nitrous Oxide emissions across four scenarios that have been developed for India. The future state of Indian economy in the next 30-years has been broadly visualized under four scenarios proposed as combinations of market integration (extent of liberalization, globalization and integration with the world markets) and nature of governance (centralization vs. decentralization). The methodology chosen for the development of these scenarios draws mainly from the IPCC SRES methodology. The paper presents CH4 and N2O emissions for each of the scenarios for all the major emitting sectors. The major sources of Methane emissions are livestock and paddy contributing to about 65% of the total emissions in 2000. The share of emissions from Municipal Solid Waste is also expected to rise with increasing urbanization. Nitrous Oxide emissions arise chiefly from synthetic fertilizer use (contributing 67% of total emissions) and from field burning of agricultural residue. The paper also presents mitigation analysis for CO2 and CH4 and long-term, hundred-year analysis for CO2, CH4 and N2O.





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