What Are the Real Animal Agriculture Impacts to the Environment?

The Truth About Sustainability Did the Food and Agriculture Organization (FAO) of the United Nations apply balanced comparisons between livestock and transportation, with respect to environmental impact? According to Dr. Frank Mitloehner, Agricultural Air Quality Center Director, University of California, Davis, the FAO's published report "Livestock's Long Shadow" misses the mark by comparing apples to oranges.
A true lifecycle assessment must be done on any system being compared.
You need to perform a complete life cycle assessment of both systems before any statements about livestock and transportation can be made and compared.