1. Department of Civil and Environmental Engineering; Washington State University; 405 Spokane Street, Sloan 101 Pullman Washington 99164 USA
2. USEPA Clean Air Markets Division; 1200 Pennsylvania Avenue NW Washington D.C. 20640 USA
3. Climate Change Institute; University of Maine; Orono Maine 04469 USA
4. Center for Environmental Research Education and Outreach; Washington State University; Pullman Washington 99164 USA