This study first takes a brief look at the relationship between countries' carbon dioxide emissions and their exports to determine if a relationship exists between carbon emissions and international trading, particularly exports. The analysis considered 23 countries from different income levels and different regions in terms of carbon dioxide emissions, total exports, agricultural exports, industrial exports and service exports. Econometric model 'Xtreg' was used to test if the statistical correlation between carbon dioxide emissions and three types of exports (agricultural, industrial and services) was significant or not. The findings were very interesting: carbon emissions were found to increase with the industrial and service exports; however, no meaningful relationship was found between carbon emissions and agricultural exports. The study argues that carbon trading puts a new crack in competition analysis in international economics.