Argument: Refining tar sands oil is more polluting to air quality
- Debate: Keystone XL US-Canada oil pipeline - con argument.
"Keystone XL Pipeline." Friends of the Earth: "After traveling through the Keystone XL pipeline, tar sands oil would be brought to facilities in Texas to be further refined. Refining tar sands oil is dirtier than refining conventional oil, and results in higher emissions of toxic sulfur dioxide and nitrous oxide. These emissions cause smog and acid rain and contribute to respiratory diseases like asthma. Communities near the refineries where the Keystone XL pipeline would terminate, many of them low-income and communities of color, already live with dangerously high levels of air pollution. The Keystone XL pipeline would further exacerbate the heavy burden of pollution and environmental injustices these communities confront."