Some 80 percent of Canadians say environmental concerns such as air pollution are important considerations when they purchase a new automobile, according to a survey conducted for business consultants Ernst and Young. About half of those people say they would be willing to pay more for an eco-friendly vehicle, with 11 percent willing to shell out up to $3,750 extra. Forty-five percent of those surveyed said they were concerned about smog, 30 percent about greenhouse gas emissions that contribute to global warming, and 24 percent about the use of recycled materials in vehicles.