摘要：It is commonly known that transport means release exhaust gases into the atmosphere which poses a threat to the natural environment. Therefore, new requirements and stricter regulations on emissions ofC2and other harmful substances are being introduced. This study presents an analysis of different emission sources of anthropogenic and natural origin. The analysis is supposed to show a real impact of transport relatedC2emissions on the natural environment. The work includes results of tests concerning application of biocomponents in motor vehicle fuels and their impact on the value ofC2emission. Having in mind the analysis, it can be said that, as compared to other branches of economy and its natural sources, transport is not the major source ofC2emission and application of biofuels is not a factor that is likely to significantly contribute to carbon dioxide emission reduction on a global scale.
