- Corporate Environmental Responsibility Report & Greenhouse Gas Inventory
- Carbon dioxide
- Nitrous oxide
- Sulfur hexafluoride
The inventory used the equity share approach in which assets owned by AMR, parent company of American Airlines, were covered in the inventory. Revenue ton miles (RTM), an indicator of both the number of passengers and distance flown was selected as an intensity factor measuring production levels. Using the intensity factor RTM demonstrated that greenhouse gas emissions on a normalized basis (accounting for RTM) decreased by approximately 20 percent from 2000 to 2006. GHG emission reductions were also estimated for various greenhouse gas projects completed over the past six years.