In this paper, effect of electricity consumption, growth and trade openness on CO2 emission in Turkey between 1970-2014 was analyzed. As an econometric method, ARDL (Auto Regressive Distributed Lag Model) bounds test approach was applied. The increase in electricity consumption, GDP and trade openness by 1% increases carbon dioxide emission by 0.15%, 0.60%, 0.17%, respectively. Error correction coefficient is negative and statistically meaningful. The impact of the variables on carbon dioxide emission clearly show that measures to be taken on environmental pollution in Turkey have become mandatory. [ABSTRACT FROM AUTHOR]