ENVIRONMENT

Environmental Issues

Environmental Issues

Introduction

The uncertainties with the climate make it clear that, there are dangerous climatic changes and, urgent response is needed. In order to deal with these uncertainties, United Nations Framework Conventions (UNFCCC) came into force in order to save the future green house gas concentration. Uncertainty in the science has made several confusions in the making of policies and, different processes and, led to time time consuming debates and, how to implement such policies in the principle of equity. Climatic uncertainty is the essential factor for the climatic system and, with the passage of time, climate science increases, perceptions of the types and, level of uncertainty may increase or decrease. In order to achieve the safe level of green house gases with its concentration and temperature, there are two essential things: first reduction of the green house gases emissions and, protection of the land and ocean sinks.

Discussion

As there are gases "greenhouse" in the composition of the atmosphere (carbon dioxide, water vapor, nitrogen oxides, methane) and, solar energy absorbed by the soil which may not totally and immediately radiated into space will cease to be illuminated, but the atmosphere acts like the glass walls of the greenhouses and, thus, the Earth's average temperature remains around 15 ° C. This balance is achieved tremendous natural energy, which prevents temperature fluctuations, incompatible with life forms we know. The problem is not, therefore, in the greenhouse, but in altering the existing balances in the increase of gases, that produce the greenhouse effect, mainly due to the increased emission of CO2 produced by burning fossil fuels such as coal or oil, not forgetting that there are other gases, such as methane, nitrous oxide, chlorofluorocarbons, hydrofluorocarbons, water vapor and ozone, which also contribute to this effect emissions and most of them grow each year causing what should name "global warming". The problem is not that, the atmosphere is warm, but it gets too hot. It is striking, for example, compounds that hydrofluorocarbons (HFCs) have replaced the fluorclorocarbonados (CFCs), which cause the destruction of the ozone layer, in aerosols and refrigeration equipment. This avoids the destruction of the ozone layer, but it still contributes to the greenhouse effect.

Carbon dioxide is also one of the major products for combustion. There is no such effective method to reduce the emission of carbon dioxide because whenever there is combustion processes emission of carbon dioxide is mandatory (Haneman, 2000). The only way is to reduce the amount of fuel which stops the emission of carbon dioxide. Carbon dioxide is non toxic but lead to green house effects and global warming.

Carbon dioxide emissions and, greenhouse effects

Carbon mono oxide is typically formed when there is incomplete combustion. It is due to the incomplete combustion of hydrocarbons where oxidation process does not give proper time for the reaction occurring (Haneman, 2000). There are also sufficient amount of hydrocarbons emission, which is due to the non sufficient temperature. This generally occur near the cylinder wall such as quenching wall and the temperature of ...