If we idle our car for more than 60 seconds, we are contributing to poor air quality and climate change. A car's exhaust contains particulate matter (PM), volatile organic compounds (VOCs), nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO2). By reducing idling by five minutes a day, you will save about 44.9 litres of fuel ($55.36 at $1.25/L) and 103 kg of greenhouse gas emissions in a year.
Check with your local municipality to see if they have an idling control by-law.