ETHANOL LIFE CYCLE COSTING AND LIFE CYCLE ANALYSIS

Abstract

As a result of activities such as rapid urbanization, high population growth, increases in production and consumption depending on technological developments, destruction of forests, excessive consumption of fossil fuels, industrialization and agricultural production; The shares of gases such as carbon dioxide (CO2), methane (CH4), nitrogen oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC) and sulfur hexafluoride (SF6), which are known as greenhouse gases, in the atmosphere are constantly increasing. Spread of these substances in the environment; It causes not only regional damages such as water and air pollution, but also global warming and its effects on climate changes. The gas that contributes the most to global warming is carbon dioxide, and it constitutes 77% of greenhouse gases in the atmosphere. On the other hand, carbon dioxide gases resulting from the use of fossil fuels correspond to 57% of the total carbon dioxide emissions. Decrease in forests and fires stand out as other important factors causing carbon dioxide emissions. After carbon dioxide, methane, the most abundant greenhouse gas in the air, constitutes 14% of the greenhouse gases in the atmosphere, while the share of nitrogen oxide is around 8%.