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. Author manuscript; available in PMC: 2015 Sep 3.
Published in final edited form as: Am J Transplant. 2009 Jul 28;9(10):2416–2423. doi: 10.1111/j.1600-6143.2009.02784.x

Table 1.

Effect of changes in travel practice in Michigan to a ground travel/fixed-wing aircraft only model.

Michigan 2002–2008 100 mile auto/fixed-wing cutoff 150 mile auto/fixed-wing cutoff
Number of fixed-wing flights 408 425 390
Total travel (vehicle) costs $4,694,596 $4,564,206 $4,338,316
Total CO2 footprint (lbs.) 6,049,813 5,955,206 5,828,900
Number of fixed-wing flights 494 538* 422*
Total travel (vehicle) costs $8,962,938 $8,617,540 $7,868,876*
Total CO2 footprint (lbs.) 4,489,576 4,325,656 3,991,576*
*

denotes P < 0.05 when compared with historical values (Michigan 2002–2008)