tag:blogger.com,1999:blog-1730375540078695956.post5816745452112194143..comments2023-09-01T06:18:39.398-07:00Comments on Hawaii Superferry unofficial blog: Good Hawaii Public Radio show and response to Tim DickMauibradhttp://www.blogger.com/profile/16759237357642699345noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-1730375540078695956.post-54807005100755808132009-03-26T23:27:00.000-07:002009-03-26T23:27:00.000-07:00Here was my reply to Tim on his blog:Tim,Thank you...Here was my reply to Tim on his blog:<BR/><BR/>Tim,<BR/><BR/>Thank you for noticing.<BR/><BR/>Re: "Ferries are far more energy-efficient than jets (especially for short trips) because they do not need to boost you six miles into the sky."<BR/><BR/>You are talking about slow ferries or fast ferries? Slow ferries would be more energy-efficient. Fast ferries are not more efficient than jets beyond a 2 hour fast ferry ride.<BR/><BR/>"It’s no wonder flying a jet to Maui produces about 120 pounds of CO2 greenhouse gas per 200 lb. passenger each way. The ferry produces just 20 lbs. of CO2 to move 200 lbs. in comparison."<BR/><BR/>The stats you refer to are dividing the much greater total CO2 emissions of HSF by total weight including cargo, a favorable comparison to a jet because jets carry much less lb. weight. When you do the comparison just by number of people, CO2 emissions are twice that for HSF compared to an interisland jet per person. If you are going to compare the CO2 emissions by weight, then you should compare HSF to Young Brothers. HSF's CO2 emissions are much greater than Young Brothers by lb. weight.<BR/><BR/>"(These calculations assume the plane and ferry are full. If each is, (as typical) about half full, the plane produces 240 lbs. of CO2 per person and the ferry 40 lbs. per person.)"<BR/><BR/>HSF has rarely run full. Hawaiian Air jets regularly run interisland at 123 people full.<BR/><BR/>"Flying has, and will always have, a uniquely important role in Hawai`i - there is no way ferries can match the frequency of so many trips to Maui every day for example. However some people take this remarkable luxury for granted. Superferry critic and blogger Brad Parsons says he “splits his time between Maui and Kauai” contributing 480 lbs. of CO2 to our atmosphere each time he makes that connection through Honolulu. We hope that Mr. Parsons offsets his carbon footprint via CarbonFund or similar as we do."<BR/><BR/>The paper took liberty with that quote, "says he 'splits his time between Maui and Kauai.'" I have been back to Maui once in the past 10 months. I view casual interisland travel as a waste of resources and money. I now 'Use much less than Half' for that purpose, something that much of HSF's expected market also appears to have done in the past 6 months.<BR/><BR/>Aloha, BradMauibradhttps://www.blogger.com/profile/16759237357642699345noreply@blogger.com