Greenhouse Gas Emissions in India: Implications to Climate Change Siv Balachandran Shekhar Chandra
Trends of Major Greenhouse Gases
Emission Trends: 10 Nations
Global Emissions Sources: UNFCC Report
India NAAQS
Multi-gas Emission Trends
**Energy Department projects even more pronounced trends in coming years (11 th fifth year plan, )** Total CO2 Emissions From India: Relative Trends
Emissions in India Sources: Earth Trends and Country Profiles
India Energy Consumption
CO2 Emissions From Different Fuel Type Source: Department of Energy, GoI
Future Growth in Different Sources Due to Increasing Needs
Future Economic Scenarios IPCC (Special Report on Emissions Scenarios) SRES Framework A: Centralization B: Decentralization 1: High integration with global markets 2: Low integration with global markets Source: Shukla, Current Science, V90, #3
Emissions Projections National level top-down macro- economic models –SGM/ERB National level bottom-up energy system models –MARKAL with AIM, ANSWER-MARKAL Local level bottom-up models Source: Shukla, Current Science, V90, #3
Future Growth Trends Source: Shukla, Current Science, V90, #3
CO2 Emission Scenario IA1 < IA2 Better technology leads to greater efficiency Source: Shukla, Current Science, V90, #3
CH4 Emission Scenario Source: Shukla, Current Science, V90, #3
N2O Emission Scenario Source: Shukla, Current Science, V90, #3
Emission Trends for IA2 Source: Shukla, Current Science, V90, #3
100 Year CO2 Trends All scenarios show a rising trend Improved energy efficiency only goes so far Source: Shukla, Current Science, V90, #3
Stabilization Mechanisms 1990’s M Tons mitigation –Population growth stabilization –Improved roadway/transit networks –Alternative fuels –Incentives for sustainable technology –Conservation/recycling –Land conservation/re-forestation Source: Shukla, Current Science, V90, #3
Energy Consumption Coal based power generation and transportation What options are available for stabilizing CO2 emissions from these sources?
CO2 Stabilization Scenario Source: Shukla, Current Science, V90, #3
Unresolved Questions How realistic are renewable energy goals? Biomass - food vs. fuel? Nuclear feasibility - political and technical? Built-in efficiencies?
Summary Role of developing nations in GHG emissions continues to be important Development versus sustainability Multi-faceted solutions