First Name | Carolyn Sherwood |
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Last Name | Call |
Email Address | carolynsc@sbcglobal.net |
Affiliation | |
Subject | GHG reductions from high-speed rail |
Comment | Thank you for the opportunity to comment on the Proposed Scoping Plan. I have analyzed CARB’s GHG calculations for high-speed rail and have found that CARB’s estimate understates the impact of high-speed rail on GHG emissions. I estimate that high-speed rail will reduce CO2E by 2.5 MMT in 2020, more than twice CARB’s estimate of 1.1 MMT CO2E. Two factors drive most of the difference between CARB’s estimate and mine: * CARB’s ridership estimate is based on a gasoline price in 2020 of $2.74 per gallon. If the price of gasoline is closer to $4 per gallon in 2020, more travelers will choose high-speed rail over air or auto travel, reducing CO2E by an additional 0.8 MMT in 2020. * CARB’s carbon factor for air travel is lower than most analysts use. Changing the parameter for air travel generates a further cut in emissions of 0.5 MMT CO2E. Details of the analysis are included in the attached report. -Carolyn Sherwood Call, Ph.D. |
Attachment | www.arb.ca.gov/lists/scopingpln08/895-ghg_analysis_of_high-speed_rail.pdf |
Original File Name | GHG Analysis of High-Speed Rail.pdf |
Date and Time Comment Was Submitted | 2008-12-03 09:52:13 |
If you have any questions or comments please contact Clerk of the Board at (916) 322-5594.