Overall Rating Gold
Overall Score 72.07
Liaison Katie Koscielak
Submission Date May 7, 2020

STARS v2.2

Humboldt State University
OP-2: Greenhouse Gas Emissions

Status Score Responsible Party
Complete 4.57 / 8.00 Morgan King
Sustainability & Waste Coordinator
Facilities Management
"---" indicates that no data was submitted for this field

Gross Scope 1 and Scope 2 greenhouse gas (GHG) emissions:
Performance year Baseline year
Gross Scope 1 GHG emissions from stationary combustion 5,499.99 Metric Tons of CO2 Equivalent 8,862 Metric Tons of CO2 Equivalent
Gross Scope 1 GHG emissions from other sources 219.63 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from imported electricity 3,365.02 Metric Tons of CO2 Equivalent 4,140 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from imported thermal energy 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Total 9,084.64 Metric Tons of CO2 Equivalent 13,002 Metric Tons of CO2 Equivalent

Figures needed to determine net carbon sinks:
Performance year Baseline year
Third-party verified carbon offsets purchased 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Institution-catalyzed carbon offsets generated 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon storage from on-site composting 0.68 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon storage from non-additional sequestration 0 Metric Tons of CO2 Equivalent ---
Carbon sold or transferred 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Net carbon sinks 0.68 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the carbon sinks, including vendor, project source, verification program and contract timeframes (as applicable):

The Waste Reduction & Resource Awareness Program (WRRAP) manages the student-run, on-campus composting program. WRRAP collects organics from departmental breakrooms, student-run coffee tables, and events. The organics go into the Earth Tub, a 3 cubic yard in-vessel aerobic composter. Harvested compost is then distributed to students and campus programs for use in campus and off-campus gardens. WRRAP is an Associated Students funded program. The Earth Tub is located at HSU Facilities Management.The carbon storage from on-site composting was calculated by inputting total pounds of composted organic waste into the SIMAP calculator.


Adjusted net Scope 1 and Scope 2 GHG emissions:
Performance year Baseline year
Adjusted net GHG emissions 9,083.96 Metric Tons of CO2 Equivalent 13,002 Metric Tons of CO2 Equivalent

Start and end dates of the performance year and baseline year (or three-year periods):
Performance year Baseline year
Start date July 1, 2018 Jan. 1, 2005
End date June 30, 2019 Dec. 31, 2005

A brief description of when and why the GHG emissions baseline was adopted:

2005 is the baseline year used in the AASHE STARS v1.2 report submitted in 2013. To maintain consistency, 2005 is used as the baseline for this report.


Figures needed to determine “Weighted Campus Users”:
Performance year Baseline year
Number of students resident on-site 2,089 1,271
Number of employees resident on-site 6 3
Number of other individuals resident on-site 5 0
Total full-time equivalent student enrollment 7,353 6,850.85
Full-time equivalent of employees 1,252 1,231
Full-time equivalent of students enrolled exclusively in distance education 106 0
Weighted Campus Users 6,903 6,379.89

Adjusted net Scope 1 and 2 GHG emissions per weighted campus user:
Performance year Baseline year
Adjusted net Scope 1 and 2 GHG emissions per weighted campus user 1.32 Metric Tons of CO2 Equivalent 2.04 Metric Tons of CO2 Equivalent

Percentage reduction in adjusted net Scope 1 and Scope 2 GHG emissions per weighted campus user from baseline:
35.43

Gross floor area of building space, performance year:
1,999,609 Gross Square Feet

Floor area of energy intensive building space, performance year:
Floor area
Laboratory space 41,964 Square Feet
Healthcare space 10,630 Square Feet
Other energy intensive space 29,513 Square Feet

EUI-adjusted floor area, performance year:
2,134,310 Gross Square Feet

Adjusted net Scope 1 and 2 GHG emissions per unit of EUI-adjusted floor area, performance year:
0.00 MtCO2e / GSF

A brief description of the institution’s GHG emissions reduction initiatives:

Over the years, HSU has benefitted from the State of California’s Renewable Portfolio Standard, which has escalated renewable energy procurement requirements for the state’s load-serving entities and has thus reduced the carbon intensity of HSU’s purchased electricity. Also, HSU’s Climate Action Plan, adopted in 2017, includes specific strategies to curb emissions associated with electricity, natural gas, and fleet fuel use, many of which are in implementation or have been completed. These include but are not limited to: Pump, lighting and controls upgrades for the campus pool (completed); server virtualization, consolidation and removal of legacy file storage systems (completed); use B20 biodiesel in diesel fleet vehicles (completed); building HVAC upgrades and controls (ongoing); exterior and interior lighting system upgrades to LED; installation of rooftop solar (20 Kw Dc system installed in 2018); expand energy conservation outreach and behavior change initiatives such as the Green Workplace Assessment (ongoing). At this time, emissions from HSU’s consumption of natural gas exceed emissions from electricity. The campus sees electrification (i.e., replacing gas-fired boilers with heat pumps) as critical for moving towards carbon neutrality. Facilities Management has planned to deploy a heat pump as part of a renovation project for Jenkins Hall, a proof of concept. The Jenkins Hall Renovation project is expected to start in 2020.


Website URL where information about the institution's GHG emissions is available:
Additional documentation to support the submission:

The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.