Calendar Year 2008 Prepared by LincolnLancaster County Health Department Presented by Doug Tangeman EEI Overview Background and Methods Emissions Breakdown Key Results Community Comparisons ID: 673617
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Slide1
Lincoln Community Greenhouse Gas Emission Inventory
Calendar Year 2008
Prepared by: Lincoln-Lancaster County Health Department
Presented by: Doug Tangeman, EEISlide2
Overview
Background and MethodsEmissions BreakdownKey Results
Community ComparisonsFuture ImprovementsSlide3
Inventory Benefits
Establishes a baseline (where are we now?)Where are emissions actually generated?What areas can we most effectively improve upon?
How do we compare to other cities/regions?Increasing regulationGHG emissions reporting now required by EPA for many regulated sources
GHG inventories already mandated in some statesSlide4
Background and Methods
AbbreviationsGHG = Greenhouse GasCO2
e = Carbon Dioxide Equivalent. A particular gases’ global warming potential over 100 years relative to carbon dioxideCarbon Dioxide (CO2) = 1
Methane (CH4) = 21Nitrous Oxide (N
2O) = 310Sulfur Hexafluoride (SF6) = 23,900eGRID = Emissions & Generated Resource Integrated Database
CFC/PFC = Chlorofluorocarbon/PerfluorocarbonCACP Software = Clean Air and Climate Protection SoftwareICLEI = International Council for Local Environmental InitiativesSlide5
Background and Methods
“Lincoln Community” defined as the city limitsWhen no city wide data was available, used ratio of Lincoln population to total population for which data was available
Emissions from purchased electricity determined using EPA’s eGRID model Inventoried CO2
, CH4, N2
O, and SF6 emissionsDoes not include emissions from CFCs or PFCs
Made best effort to use fuel consumption dataEmissions assigned to one of five “sectors” (groups)Emissions calculated and totaled using
CACP v. 2.2.1bSlide6
Sources of Data
UtilitiesLincoln Electric SystemBlack Hills EnergyLincoln Water/Wastewater
IndustryRegulated air pollution sourcesEmergency/Non-emergency generators
TransportationVMT estimates from planningNebraska DMV
BNSF & UPRRPrivate aviationOtherLandfillsEnergy Information AdministrationSlide7
Where are we now?
Lincoln 2008- 4,775,088 Metric Tons (tonnes) CO2e
*2008 U.S. Total = 7,052,600,000 Metric Tons CO
2
e (U.S. Energy Information Administration Estimate) Slide8
Where are Emissions Generated?Slide9
Where are emissions generated?Slide10
Residential
Commercial
Industrial
Tonnes CO
2
eSlide11
Transportation
Includes:On road vehicles
LocomotivesPrivate Aviation
Tonnes CO
2
eSlide12
What areas can we improve upon?
Over 2.8 million tonnes of CO
2e are from electricity and natural gas used to light, heat, and cool homes and businesses
Another 700,000 tonnes are generated from personal vehicle useThese combine to account for nearly 75% of all GHG emissionsSlide13
What areas can we improve upon?
Significantly reducing emissions means efforts must be made across ALL sectorsReductions in home and office heating/cooling use
Changes in driving habitsSlide14
How do we compare?
Population from
U.S Census Bureau July 1
st, 2008 estimateUnited States emission estimate from Energy Information Administration 2008 U.S. Greenhouse Gas Emission Inventory Report Slide15
Historical Trends
http://www.census.gov/popest/data/national/totals/1990s/tables/nat-total.txt http://www.census.gov/popest/data/state/totals/2009/tables/NA-EST2009-01.xls http://www.epa.gov/climatechange/Downloads/ghgemissions/US-GHG-Inventory-2012-Chapter-2-Trends.pdf
Year
Million Metric Tons CO2e
Population
Per Capita
%
Change vs.
1990
1990
6175
248.143
24.88
0.00%
1991
6135
250.718
24.47
-1.67%
1992
6237
253.62
24.59
-1.18%
1993
6360
256.516
24.79
-0.37%
1994
6457
259.131
24.92
0.13%
1995
6544
261.615
25.01
0.52%
1996
6757
264.061
25.59
2.83%
1997
6803
266.574
25.52
2.55%
1998
6846
269.118
25.44
2.23%
1999
6909
271.584
25.44
2.23%
2000
7104
274.024
25.92
4.18%
2001
6988
283.711
24.63
-1.02%
2002
7022
286.489
24.51
-1.50%
2003
7053
289.201
24.39
-2.00%
2004
7163
291.786
24.55
-1.35%
2005
7204
294.473
24.46
-1.69%
2006
7159
297.213
24.09
-3.21%
2007
7253
300.175
24.16
-2.90%
2008
7048
303.088
23.25
-6.55%
2009
6608
305.794
21.61
-13.16%
2010
6822
308.4
22.12
-11.11%Slide16
Historical Trends
http://www.census.gov/popest/data/national/totals/1990s/tables/nat-total.txt http://www.census.gov/popest/data/state/totals/2009/tables/NA-EST2009-01.xls http://www.epa.gov/climatechange/Downloads/ghgemissions/US-GHG-Inventory-2012-Chapter-2-Trends.pdf Slide17
Questions