Letter: To improve the air, lower speed limits

Utah Gov. Gary Herbert wants to spend $100 million to improve air quality. Certainly it is a good idea to improve such, but it seems that the improvement can be achieved by spending far less.According to the EPA, automobile/truck emissions account for between 50 percent and 75 percent of the pollutants causing air pollution.Every gallon of gas saved keeps 20 pounds of carbon dioxide out of the atmosphere. We also know that gasoline consumption is the result of speed and auto efficiency. Mechanic