Biofuels take to the sky

摘要

Toronto's Porter Airlines Inc. has completed what it calls the first commercial flight in Canada to bo powered by biofuels.Building on the success of a two-hour preparatory biofuel flight in February, the airline signed up some paying customers to take a mid-April jaunt from Toronto to Ottawa. The only difference from a regular flight-aside from all the attendant press hoopla for the special occasion, of course-was to be found in the tank.