Scientists have found that even low exposure to diesel exhaust can promote myocardial ischemia resulting in adverse cardiac events.

Diesel fumes interact with fatty acids found in LDL cholesterol and raise the risk of heart disease.

And a Harvard University study found that the odds of dying from heart disease are 50 percent higher in truckers, and diesel is being held responsible for the increased risk.

Recent green advertisements in New York City even remind you that it is illegal to idle your car. Turn it off when it’s not in use.