The overarching purpose of the inventory is to help prepare Louisiana for the possible federal regulation of greenhouse gases (GHG) and to assure that the state will be prepared to respond intelligently to any such regulation in a manner that would mitigate potential adverse impacts on the state’s economy and that would recognize any potential economic development opportunities that might be presented.
“The inventory was a much-needed tool for the state to have in preparation for potential greenhouse gas legislation,” said McDaniel. “The report is timely and is as thorough as any I’ve seen for other states.”
The inventory (Task 1 of the project) cites emissions data for the year 2005 to match that of proposed U.S. climate legislation, which uses that year as the base year against which emission reductions would be compared. According to the inventory, Louisiana greenhouse gas emissions for 2005 totaled 228 million metric tons of carbon dioxide equivalent emissions. Eighty-four percent of GHG emissions were made up of CO2 from fossil fuel combustion, placing Louisiana eleventh among all states in total GHG emissions from fossil fuel combustion. Louisiana’s total GHG emissions were comparable to other Gulf Coast states such as Georgia, Florida, and Alabama.
The inventory shows that CO2 (CO2 equivalent basis) represented 86 percent of Louisiana’s GHG emissions, followed by methane at 8 percent, nitrous oxide at 3 percent, and hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride at a combined 3 percent.
A comparison of Louisiana GHG emissions to total U.S. emissions shows that U.S. emissions have grown by about 18 percent from 1990 to 2005, while Louisiana emissions have decreased slightly. Comparing Louisiana GHG emissions with state population and gross state product shows Louisiana GHG emissions have fallen even as population and gross state product have grown. Additionally, Louisiana’s vehicle miles traveled and gasoline use have increased by about 20 percent and 30 percent, respectively, from 1990 to 2005, while GHG emissions have remained relatively flat.
Projections of total GHG emissions, and each of the major sectors’ emissions (e.g. industrial, transportation, electric power, residential, commercial) over the period 2005 – 2020 show a continuation of the relatively flat GHG emission trends seen over the preceding 15-year period (1990 – 2005).
Louisiana Greenhouse Gas Inventory Project Final Report
Louisiana Greenhouse Gas Inventory Project: Task 2 Report: Overview of States’ climate Action and/or Alternative Energy Policy Measures