Final Vermont Greenhouse Gas Inventory and Reference Case Projections, 1990-2030 Page: 5
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Final Vermont GHG Inventory and Reference Case Projection, 1990-2030
CCS, September 2007
Results
Total gross GHG emissions for the transportation sector were about 3.2 million metric tons
(MMt) of CO2 equivalent (CO2e) in 1990 (40% of total gross GHG emissions), 3.8 MMtCO2e in
2002 (43% of total gross emissions), about 4.5 MMtCO2e in 2020 (35% of total gross
emissions), and about 4.9 MMtCO2e in 2030 (35% of total gross emissions). As shown in Figure
C2, onroad gasoline consumption accounts for the largest share of transportation GHG
emissions. Emissions from onroad gasoline vehicles increased by about 18% from 1990 - 2002
to cover almost 81% of total transportation emissions in 2002. Accounting for the effects of the
CA light-duty vehicle GHG standards, average annual growth in gross GHG emissions for the
onroad gasoline consumption sector is projected at about -0.7% from 2002 through 2030.
GHG emissions from onroad diesel fuel consumption increased by 56% from 1990 to 2002, and
by 2002 accounted for 16% of GHG emissions from the transportation sector. From 2010
through 2030, onroad diesel fuel consumption is projected to increase from about 17% to 20% of
total gross GHG emissions for the transportation sector. Accounting for the effects of the CA
light-duty vehicle GHG standards, average annual growth in gross GHG emissions for the
onroad diesel consumption sector is projected at about 0.6% from 2002 through 2030.
Emissions from all other categories combined [air travel, boats and ships, locomotives, natural
gas and liquefied petroleum gas (LPG), and oxidation of lubricants] contributed only 2% of total
transportation emissions in 2002, 6.3% of total transportation emissions in 2010, and about 9%
of total transportation emissions from 2020 through 2030. The jet and aviation fuel consumption
sector is projected to have the most significant growth with emissions increasing at an average
annual rate of about 8.2% from 2002 through 2030. The average annual growth in emissions for
the rail, marine, and other categories is projected to be 2.7%, 1.2%, and 1.0%, respectively, from
2002 through 2030.Vermont Department of
Environmental ConservationC-5
Center for Climate Strategies
www.climatestrategies.us
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Center for Climate Strategies. Final Vermont Greenhouse Gas Inventory and Reference Case Projections, 1990-2030, text, October 2007; Washington, DC. (https://digital.library.unt.edu/ark:/67531/metadc226803/m1/63/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .