Causes of Climate Change Essay Example | Topics and Well Written Essays - 250 words

Causes of Climate Change - Essay Example Greenhouse gases are crucial in sustaining life on earth. They allow rays from the sun to enter but stop them from escaping to outer space. However, individuals cause the release of more greenhouse gases into the atmosphere making the greenhouse effect stronger. As a result, the earth’s climate begins to change because more heat is trapped (Directgov 2012). Changes in the energy output of the sun cause the climate to change. This is because the sun is a vital source of energy that drives the climate system. This effect is referred to as solar irradiance. Research has indicated that variability in solar energy has played a major role in the previous climate changes. However, there is not sufficient evidence to support the effect of solar irradiance on the current global warming (NASA 2012). The earth’s climate is changed and influenced by natural causes such as ocean currents, volcanic eruptions, solar variations, and changes in the earth’s orbital. For instance, volcanic eruptions produce gases such as carbon dioxide and sulfur dioxide. Carbon dioxide, which is a greenhouse gas, causes climate change but its effects are minimal compared to the emissions caused by humans (Climatechangechallenge.org 2012). In conclusion, there are two causes of climate change, human and natural causes. Human causes have led to the increase of greenhouse gases in the air which causes a change in the climate. Natural causes also lead to changes in climate, but their effects are minimal compared to the human causes. The effect of solar irradiance on the climate is also