| 2007 | 2008 | 2009 | 2010 | 2012 Target |
| 23,496 t CO2e | 23,265 t CO2e | 21,652 t CO2e | 21,250 t CO2e | 40,000 t C02e |
In FY08, air travel was the largest source of net emissions for OSU, contributing more than 35,000 t CO2e. Emissions from air travel have increased rapidly in the past years; the European Environmental Agency estimated that emissions from air travel increased 73% between 1990 and 2005. The growth in university‐related air travel and the lack of alternatives to air travel
make this a difficult source to mitigate. Because many university‐related activities occur at great distances from the main campus and because Oregon occupies a coastal – rather than central – location in the United States, air travel is expected remain a necessary transportation mode for a considerable number of faculty.
Even with these complicating factors, emissions from air travel can be reduced without drastically impacting the way OSU does business.
| Strategy | Implementation Period | FY10 Progress | Estimated FY10 Reduction |
| 1: Encourage alternative transportation modes | FY11 | N/A | |
| 2: Restrict air travel (or reimbursements) in certain cases | |||
| 3: Encourage use of alternatives to travel (technologies such as teleconferencing, etc.) | FY11 | Teleconferencing | |
| 4: Minimize climate impact of air travel | |||
| 5: Offset remaining emissions from air travel |
For more detail, please see OSU Climate Plan pages 24-26.