KENTUCKY GREENHOUSE GAS EMISSIONS AND SINKS INVENTORY:

SUMMARY

Kentucky Greenhouse Gas Emissions for 1990

Million Metric Tons of Carbon Equivalent

40.0
35.0
« 30.0
| 25.0
£ 20.0

0	15.0
c 10.0

1	5.0

i o.o

-5.0
-10.0

Total Waste Agriculture Industry Land Use
Energy

Sector



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~ carbon
equivalent

The report "Kentucky Greenhouse Gas Inventory" provides a detailed inventory of
greenhouse gas emissions and sinks for Kentucky in 1990. Emissions were estimated
using methods from EPA's 1995 guidance document State Workbook: Methodologies
for Estimating Greenhouse Gas Emissions. In 1990, Kentucky emitted 35.4 million
metric tons of carbon equivalent (MMTCE). In addition, Kentucky estimated emissions
of 0.4 MMTCE from biofuels. Emissions from biofuels are not included in the reported
total or the table below.1

The principal greenhouse gases were carbon dioxide, comprising 87.9 million metric
tons (24.0 MMTCE), and methane, with 1.1 million metric tons (6.4 MMTCE). Other
emissions included 0.0016 million metric tons of perfluorocarbons (PFCs) (4.8 MMTCE),
and 0.003 million metric tons of nitrous oxide (0.2 MMTCE).

1 Note that the state of the art emission inventory method has advanced since Kentucky
completed its inventory; therefore, we revised Kentucky's estimates to reflect updated values for
global warming potentials. The most recent inventory guidance is available on the Internet at
http://www.epa.gOv/ttnchie1/eiip/techrep.htm#qreen.

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Kentucky Greenhouse Gas Emissions for 1990

BY SECTOR

co2

(MMTCE)

Methane
(MMTCE)

Nitrous Oxide
(MMTCE)

HFCs, PFCs,
and SF6
(MMTCE)

Total GHG
Emissions
(MMTCE)

Energy - Residential

1.1

*

*

*

1.1

Energy - Commercial

0.7

*

*

*

0.7

Energy - Industrial

4.1

*

*

*

4.1

Energy - Transport

7.2

*

*

*

7.2

Energy - Utility

19.0

*

*

*

19.0

Energy - Exported Electricity

*

*

*

*

*

Energy - Other

*

*

*

*

*

Total Energy

32.0

4.8

*

*

36.8

Waste

*

0.7

*

*

0.7

Agriculture

*

1.0

0.2

*

1.2

Industry

0.4

*

*

4.8

5.2

Land Use

-8.5

*

*

*

-8.5

TOTAL

24.0

6.4

0.2

4.8

35.4

All emissions are reported in million metric tons of carbon equivalent (MMTCE).

An asterisk ( * ) indicates that emissions of the gas from this sector were zero, insignificant, or not reported.

Emissions due to coal mining and extraction of natural gas and oil are included in the energy - other
figures, and emissions from biofuel combustion are excluded.

The major source of carbon dioxide emissions was fossil fuel combustion (96%), the
majority of which is utility coal. Minor emissions came from cement and lime production
and forest/grassland conversion. Carbon dioxide sinks (i.e., an increase in forest
carbon storage) offset about 26% of the total carbon dioxide emissions. Sources of
methane emissions were coal mining (73%), domesticated animals (12%), landfills
(10%), manure management (3%), and natural gas/oil extraction (2%). Nitrous oxide
emissions were from fertilizer use. Sources of perfluorocarbons were HCFC-22
production (91%) and aluminum production (9%).

Kentucky's emissions in 1990 were 9.6 MTCE per capita, compared to 1990 U.S.
emissions of 6.4 MTCE per capita. Kentucky's per capita emissions are high due to the
large volume of coal-related activities in the state.

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