Global Greenhouse Gas Emissions Preeti Dasari, Aneesha Wagh and Julia Yun MTH 291-01.
Post on 22-Dec-2015
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Introduction
CO2 Emissions:“those stemming from the burning of fossil fuels and the
manufacture of cement. They include carbon dioxide produced during consumption of solid, liquid, and gas fuels and gas flaring.”
- World Bank
Purpose of Study:- climate change and environmental issues- effect over the years
Pitch SOS CO2 emissions. (n.d.). Retrieved April 29, 2015, from http://www.cartoonmovement.com/cartoon/10261
Goals
1. Determining factors that affect CO2 gas emissions2. Comparing country groups and time periods
a. High Income (gdp per capita > 12616)b. Middle Income (12616 < gdp per capita < 1035)
c. Low Income (gdp per capita < 1035)
3. Cross-validation of year 2000 data with year 2010 model
Data Source: World Bank Climate Change Database
VariablesResponse Variable- CO2 Gas Emissions (kt)
Explanatory Variables- GDP per capita (US$)
- Energy Use (kt of oil equivalent)
- Access to Electricity (ATE) (% of total population)
- Electricity Production (kWh)
- Agricultural Land (% of land area)
- Forest Land (% of land area)
- Population in urban agglomerations of more than 1 million (% of total population)
- Time: year 2010 and year 2000
Data / Missing Data
● 429 observations● approximately 42% of data missing ● regression model used to impute data for all variables
Final Model (year 2010)
log(CO2emission) = βo + β1*log(energy.use) + β2*log(electprod) + β3*(ATE^2) + β4*forest.land + β5*agri.land + ε
ANOVA Model (year 2010)
Total of 215 countries- 67 high income countries- 111 middle income countries- 37 low income countries
Year 2010:
Conclusions- factors that significantly affect
CO2emissions: ATE, agri/ forest land, energy use & elect production
- Countries produce different amounts of C02 and this trend has changed within income groups over the years
- 2010 data cannot be used to predict previous/ future CO2 emission levels as shown -- because of constantly evolving global trends.
Truthdig - Tag - Co2 Emission. (n.d.). Retrieved April 30, 2015, from http://www.truthdig.com/tag/co2_emission
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