GHG Report for University of Louisville
Submitted on September 16, 2011; last updated on May 1, 2012
Summary StatisticsMaking fair comparisons between higher education institutions is always challenging due to the rich diversity of higher education. The unverified nature of the information in this database and unavailability of unbiased normalization metrics means such comparisons are even more difficult. Users should therefore approach direct institution to institution comparisons with caution and recognize that all comparisons between institutions are inherently biased.
|Total||Per Full-Time Enrollment||Per 1000 Square Feet||% Offset|
|Gross emissions (Scopes 1 + 2)||159,137 metric tons of CO2e||8.7 metric tons of CO2e||19.5 metric tons of CO2e||0%|
|Gross emissions (Scopes 1 + 2 + 3)||201,505 metric tons of CO2e||11.0 metric tons of CO2e||24.7 metric tons of CO2e||0%|
|Net emissions||200,859 metric tons of CO2e||11.0 metric tons of CO2e||24.7 metric tons of CO2e||N/A|
Emissions Inventory Methodology and Boundaries
|Start date of the 12-month period covered in this report||July 1, 2010|
|Consolidation methodology used to determine organizational boundaries||Operational control approach|
If any institution-owned, leased, or operated buildings or other holdings that should fall within the organizational boundaries are omitted, briefly explain why.
Several buildings which are associated with the University but not owned or operated by UofL are not included in this report. Examples of these include fraternity and sorority houses, residence halls operated by third parties, the University Hospital, and off-campus leased space. It is particularly difficult for the University to track or control these emissions.
|Emissions calculation tool used||Clean Air-Cool Planet|
Please describe why this tool was selected.
Estimated emissions were calculated using the Clean Air-Cool Planet® Campus Carbon Calculator v6.1 software utilizing annual facility data. The calculator was used for university data collection, storage and conversion into a common greenhouse gas emission unit, metric tons of carbon dioxide equivalent (MT eCO2). In the conversion process, the calculator uses scientifically-based factors for specific activities leading to GHG emissions (e.g., commuter miles traveled, tons of waste disposed, gallons of fuel burned, etc.). These conversion factors have been modified as more is learned about the global warming effects of various greenhouse gases.
Please describe the source(s) of the emissions coefficients used.
The default emissions coefficients supplied in the Clean Air-Cool Planet® Campus Carbon Calculator were used in preparing this report. The version of the Carbon Calculator we employed uses a global warming potential (GWP) factor from the Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). GWP is the ratio of the degree of warming to the atmosphere that would result from the emission of one unit of a given GHG compared to one unit of carbon dioxide over a specified time period. This is used to convert emissions of other GHGs into units of carbon dioxide equivalents (CO2e).
|Which version of IPCC's list of global warming potentials did you use?||Third Assessment Report|
|Who primarily conducted this emissions inventory?||Sustainability office staff|
Please describe the process of conducting the inventory.
With the help of an engineering student intern, the Sustainability Council, in conjunction with the Office of the Vice President of Business Affairs, the department of Physical Plant Operations and University Planning, Design and Construction gathered data to update our inventory of UofL GHG emissions over the summer of 2011. Strategies for gathering the necessary data had been developed two years prior for UofL’s baseline emissions inventory.
Please describe any emissions sources that were classified as de minimis and explain how a determination of the significance of these emissions was made.
In calculating our carbon footprint, the University used rough, upper-bound estimates to designate as de minimus (or materially insignificant) small emissions sources that collectively comprised less than 5% of the University’s total GHG emissions. Some emissions considered de minimus for this report include nitrous oxides used in the medical and research facilities, perflurocarbons used in eye surgeries and MRIs, sulfur hexafluorides used in ultrasound imaging, and hydrofluorocarbons from campus refrigeration systems. While emissions from these sources were excluded from this inventory, the University recognizes the very real contribution to global warming that these emissions make. It is the intention of the University to continue to seek ways to minimize all GHG emissions, whether they are closely tracked and reported or not.
Please describe any data limitations related to this submission and any major assumptions made in response to these limitations.
- Calculations to determine total fuel consumed in University vehicles were based on an average price per gallon. Total fuel consumption figures include fuel used to power equipment in addition to fleet vehicles.
Emissions from the following sources (in metric tons of CO2e)
|Scope 1 Emissions|
|Stationary Combustion||43,175.0 metric tons of CO2e|
|Mobile Combustion||1,223.0 metric tons of CO2e|
|Process Emissions||0.0 metric tons of CO2e|
|Fugitive Emissions||0.0 metric tons of CO2e|
|Total Scope 1 emissions||44,398.0 metric tons of CO2e|
|Scope 2 Emissions|
|Purchased Electricity||114,739.0 metric tons of CO2e|
|Purchased Heating||0.0 metric tons of CO2e|
|Purchased Cooling||0.0 metric tons of CO2e|
|Purchased Steam||0.0 metric tons of CO2e|
|Total Scope 2 emissions||114,739.0 metric tons of CO2e|
|Scope 3 Emissions|
|Commuting||18,245.0 metric tons of CO2e|
|Air Travel||11,544.0 metric tons of CO2e|
|Solid Waste||691.0 metric tons of CO2e|
|Paper Purchasing||540.0 metric tons of CO2e|
|Scope 2 Electricity Transportation & Distribution Losses||11,348.0 metric tons of CO2e|
|Total Scope 3 emissions||42,368.0 metric tons of CO2e|
|Biogenic Emissions from Stationary Combustion||0.0 metric tons of CO2e|
|Biogenic Emissions from Mobile Combustion||0.0 metric tons of CO2e|
|Carbon offsets purchased||0.0 metric tons of CO2e|
|Offset verification program(s)||No information provided|
Description of offsets purchased (including vendor, project source, etc.)
No information provided
|Renewable Energy Certificates (RECs)|
|Total RECs purchased||0 kWh|
|Percent of total electricity consumption mitigated through the purchase of RECs||0.0 %|
|Emissions reductions due to the purchase of RECs||0.0 metric tons of CO2e|
|REC verification program(s)||No information provided|
Description of RECs purchased (including vendor, project source, etc.)
No information provided
|Sequestration and Carbon Storage|
|Sequestration due to land owned by the institution||626.0 metric tons of CO2e|
Description of how sequestration was calculated
This is an estimate of the carbon sequestration resulting from the preservation of trees on Belknap campus and at UofL's mostly forested 200-acre Horner Conservation Property (also referred to as the Moore Observatory). We based this estimate on an average of 10 tons per hectare per year and 50 pounds per tree per year, found at http://www.plant-trees.org/resources/Calculating%20CO2%20Sequestration%20by%20Trees.pdf
|Carbon storage due to composting||20.0 metric tons of CO2e|
Normalization and Contextual Data
|Gross square feet of building space||8,146,802.0 sq ft|
|Net assignable square feet of laboratory space||No information provided|
|Net assignable square feet of health care space||No information provided|
|Net assignable square feet of residential space||No information provided|
|Total Student Enrollment (FTE)||18295.0|
|Full-time Commuter Students||13545|
|Part-time Commuter Students||5472|
|Other Contextual Data|
|Heating Degree Days||4361|
|Cooling Degree Days||1479|
Please describe any circumstances specific to your institution that provide context for understanding your greenhouse gas emissions this year.
No information provided
|Completed inventory narrative||
University of Louisville Greenhouse Gas Emissions Inventory 2006–2010
|Completed inventory calculator||Download|
Auditing and VerificationThese emissions data have been audited, verified, or peer-reviewed.
Please briefly describe this verification, if any.
The emissions data was peer-reviewed by staff from the office of the Vice-President for Business Affairs and by the Assistant to the Provost for Sustainability Initiatives.