greenhouse gases decomposition of emission growth session 5(b) neil leary changing planet study...
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Greenhouse GasesDecomposition of EmissionGrowth
Session 5(b)Neil LearyChanging Planet Study GroupJuly 19-22, 2010
Cooling the Liberal Arts CurriculumA NASA-GCCE Funded Project
Emissions of CO2 from energy use and industrial sources.Graph generated from CAIT, July 2010: http://cait.wri.org/
CO2 emission trends: 5 country comparison
Kaya Identity & decomposition
C = Pop x GDP/Pop x E/GDP x C/E
Emissions = population x per capita income x energy intensity x carbon intensity
For small changes:% Δ CO2 = % Δ population
+ % Δ per capita income+ % Δ energy intensity+% Δ carbon intensity
Graph trends in CO2 drivers with CAIT
• Login to CAIT: http://cait.wri.org/
• Select “CAIT”
• Select “Graph Trends”• Select “Compare
Countries”
• Using pull down menus– Select variable to be
graphed– Select time period– Select countries to be
displayed – Click “Update”
Graphs generated from CAIT, July 2010: http://cait.wri.org/
Five Country Comparison
North-South Comparison
Emissions of CO2 from energy use and industrial sources.Graph generated from CAIT, July 2010: http://cait.wri.org/
Decompose North-South emission trends
• Open spreadsheet“Session 5b exercise Kaya”
Uses LMDI method to decompose emissions growth
• Download data from CAIT and copy into “Session 5b exercise Kaya”
In CAIT: Select regions to be analyzed
• Click “Countries & Regions”
• Select “Regions”• Highlight World, Annex
1, Non-Annex 1• Click [>>]• Select “Display My
Countries/Regions”• Click [Save Changes]
Download data from CAIT
• Select “Calculate Trends”• Use pull down menu to
select variable– Can only due 1 var at at
time; sorry
• Select “Download”• Open the downloaded
spreadsheet• Look in downloads folder• Copy data into “Kaya 3
Country” spreadsheet
IPCC SRES projections future CO2 emissions
Source: IPCC, 2001, WGI Report, Figure 5
Decomposition of SRES Projections
Data source: IPCC SRES, 2000