What are the main causes of global warming Essay

What are the main causes of global warming - Essay Example The earth’s atmosphere usually traps solar radiation, through gases such as Carbon IV oxide, methane and water vapor; these are called the greenhouse gases, which allow incoming radiation to pass through, but traps and retain the heat radiated back from the earth’s surface (Dahlman & Renwick 96). This phenomenon is called the greenhouse effect. Global warming is simply an enhanced form of the greenhouse effect, caused by a major upsurge in the greenhouse gases in the earth’s atmosphere. The gases trap more and more radiation leading to an overall increase in the earth. For global warming to occur, a lot of factors come into play. However, scientists have concluded that human activity is the leading cause of global warming. This happens in two main ways: burning fossil fuels, which is the main cause and deforestation. When fossil fuels are extracted and burnt, they release CO2 and other greenhouse gases. Increased CO2 in the atmosphere is the biggest concern because it can last in the atmosphere for generations. Deforestation only happens to accelerate the problem further. This is because most of the cleared trees, when burnt, also release CO2. Furthermore, we know that forests require CO2 for photosynthesis. In the process, plants are able to reduce the amount of CO2 in the atmosphere. Clearing trees therefore leads to the build of carbon IV oxide, which in turn raises the earth’s temperatures. Global warming causes climate change (Dahlman & Renwick 96). This is unpredictable and mostly devastating changes in weather such as the Hurricane Sandy and other extreme climatic events such as the melting of the polar ice. These changes therefore call for all the people in the world to join hands to try to reverse and in the end eliminate this process. Among the strategies set forth to combat global warming include afforestation, which is the planting of forests where they were depleted,