Programs

Greenhouse Gas Inventory

The Greenhouse Gas Inventory (GHG) provides reports of Indiana University's (Bloomington - IUB) greenhouse emissions, background on greenhouse gases and climate change, an overview of IUB's impact, and an explanation of the campus carbon calculator. 

Reports

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2010 Report 

2009 Report

2008 Report

Climate Change & Greenhouse Gases

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Greenhouse gas illustration

Figure 1. The greenhouse effect, which is a mechanism by which climate change impacts are being seen more prevalent today (US EPA 2010)

Climate change is a global environmental  issue that is impacting natural resources and all that depend on them.  Greenhouse gases are implicated as the of cause climate change due to their heat trapping ability, provoking the “greenhouse effect” (Figure 1).  With increased industrial activity and deforestation, an increase in greenhouse gases in the atmosphere has led to more of the greenhouse effect and subsequently a greater amount of change in climate.  Climate change not only will result in an increase in average global temperatures, but more extreme weather occurrences and a rise in sea level.



IUB's Impact

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Climate change is a global environmental  issue that is impacting natural resources and all that depend on them.  Greenhouse gases are implicated as the of cause climate change due to their heat trapping ability, provoking the “greenhouse effect” (Figure 1).  With increased industrial activity and deforestation, an increase in greenhouse gases in the atmosphere has led to more of the greenhouse effect and subsequently a greater amount of change in climate.  Climate change not only will result in an increase in average global temperatures, but more extreme weather occurrences and a rise in sea level.

Campus Carbon Calculator

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The Clean Air, Cool Planet Campus Carbon Calculator (CACPCCC) is the tool used by IU for calculating greenhouse gas emissions. This calculator has been used by more than 500 universities in the United States to calculate past, current, and future greenhouse gas emissions while also developing projects that aim to reduce greenhouse gas emissions in the future.

Carbon Calculator - emission sources

Figure 2. The three different emissions source scopes as defiened by the Clean Air, Cool Planet Campus Carbon Calculator

The calculator functions through data entry into an excel spreadsheet, where formulas perform the difficult calculations after data is entered. Emission sources are divided into Scopes 1, 2, and 3 (Figure 2).

  • Scope 1 emissions are those directly emitted by the university. This includes:
    • Refrigerants and coolants
    • University fleet Agriculture
    • On-campus stationary fuel combustion
  • Scope 2 emissions come from indirectly linked sources of fuel combustion. The university usually pays a company to perform fuel combustion at an off-campus site. This includes:
    • Purchased electricity
    • Purchased steam
    • Purchased chilled water
  • Scope 3 emissions come from indirect sources that are neither owned nor operated by the university. Identifying these sources is often optional by greenhouse gas inventories. Some scope 3 emission sources are:
    • Solid waste
    • Study abroad travel
    • Directly financed outsourced travel
    • Commuting
    • Transportation and distribution losses from purchased electricity
    • Upstream emissions from directly financed purchases

Additionally, the CACPCCC accounts for any offsets the university may generate to counteract emissions. Some include composting efforts and green certificates purchased by the university. For additional information regarding the CACPCCC, please refer to the user manual found online at:http://www.cleanair-coolplanet.org/toolkit/inv-calculator.php.